Thứ Năm, 19 tháng 4, 2018

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Hey, Alexa asked connect control to play on device 1

Playing on device 1

Hey guys welcome back to another episode of simple tech man and today

We'll be using my old Android device to make an Alexa enabled smart speaker

You need to install this app reverb for Amazon, Alexa

After installing it will ask you to sign in with the Amazon Alexa app

And

All your devices will come over here, and this will be connected as a new device

So you can manage everything from here, so this device is over here next you connect your speaker with your phone via bluetooth

That's it guys now start playing with your Alexa. Hey, Alexa

What was real Madrid score

Yesterday Real Madrid lost to you ventus 3 to 1 in a new egg the Champions League match

They'll play in the lollies for this Sunday at 2:45 p.m.. Away, against, Malaga, FC

For more infomation >> DIY Amazon Alexa Smart Speaker - Duration: 1:41.

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Create Your First Ethereum Smart Contract - Live Coding - Duration: 27:30.

- Hey guys, welcome to this webinar

on writing your first smart contract

on the Ethereum Blockchain.

If you are not familiar with Ethereum or Blockchains

I encourage you to read our awesome articles

and courses online at blockgeeks.com

where you can learn more about the Blockchain

and Ethereum and the details of its inner workings.

But in this webinar, we're gonna take a look at

how to write a very simple smart contract

using a language called solidity.

So a smart contract is just a program

deployed on to the Blockchain.

And this program can contain

a set of variables or fields and set of methods

that manipulate those fields

to achieve the task of the smart contract.

So in this webinar, we're gonna take a look at

a very simple hello world type example

and just get a very gentle intro to solidity

and how you would go about

developing smart contracts on your own machine.

So to get started, we are just gonna

open up our browsers.

I am just using chrome over here.

And we are gonna use a tool called remix,

which is in open source IDE

specifically for solidity smart contracts.

And you can just get it by going to remix.ethereum.org

and it will just load up this webpage

which presents an IDE.

Now my favorite part about remix is that

you just have to go to remix.ethereum.org

and you don't have to install anything else

and you have a full-fledged IDE

where you have an editor, a debugger

as well as the test blockchain where you can test out

your smart contracts.

So I really highly recommended,

It's open source,

you can go to the get hub and downloaded as well

and run it locally if you like.

But this is a very convenient option to get started,

just in your browser without having

any sort of complicated set up.

So let's just give you a brief intro to the UI.

On the left hand side we have this menu bar,

where we can select which of our contracts

you wanna open.

So this is just a little file explorer,

you can also add a new file and open an existing one.

In the middle over here, we have our text editor

where we type in our solidity code.

When you go to the page there is a sample

voting smart contract that is given as an example.

I encourage you to through it,

but this is little more complicated

then what we are gonna see in this webinar.

So on the right hand side,

we also have another menu bar

that has some tabs for us.

We have a compile tab, where we can select

which smart contract we wanna compile

and we can also get some more details

about the compile smart contract

like its bytecode and its interface.

On the run tab, which is probably

we're gonna be using most

you can you know set up which environment

you want to deploy your smart contract to.

And we are gonna use JavaScript VM

and if you just mouse over each of these options

it tells you more detail about what it does.

But JavaScript VM all it really means is

it will spin up a test blockchain inside this browser tab.

And you can use this test Blockchain

to deploy your smart contract

and the benefit of that is obviously

you don't need to actually pay it to deploy

a transaction to the production Ethereum network

and you just test

and develop your contracts for free.

So we are just gonna click JavaScript VM.

These other two options allow you to connect

to other instances outside of the browser,

but we are gonna get into that.

We just gonna keep it really simple

and click JavaScript VM.

And when we click that

we see that this accounts drop down also generated

some values for us.

So we see five accounts that were automatically

generated for us with a hundred test ether each.

And the first one is selected for us by default

and we can copy the address if we like.

Gas limits you can specify you know how much gas

you want to sort of provide for your transactions.

And values also how much ether you wanna provide

with your transactions

and you can specify that in way or ether

and all of these are just

smaller denominations of ether.

And down here we can also select

which smart contract we wanna run.

So if we have multiple open,

we can select them from this drop down

and we can either create a new instance

of this smart contract or we can connect

to an existing instance by using the add address button.

So in order to create a new ballot contract,

I would actually have to put in an integer

to designate the number of proposals

and this lines up with this parameter over here

being passed into the constructor

and I would just enter some value and click create

which we will see in a bit with our hello world contract.

And just one last thing with UI at the bottom.

We have this terminal which is gonna

print out some useful logs and transaction details for us

to help us debug and understand what is going on

while we are developing.

So all that being said there was a quick intro

to remix in the UI,

Now let's create our first smart contract

and we will create a new file

by clicking this plus button

and we'll just call our contract

instead of calling a hello world,

we are gonna make it a little bit more interesting

and we are gonna call a code word.

So the first line at the top

of any solidity smart contract is the pragma statement

where you declare which version

of solidity you will be using.

So I am just going with point four dot 19

where you can see that this specific version of remix

is actually using a slightly newer version

point four dot two two

But it's upto you whatever you wanna use

and this caret sign this upwards arrow

indicates that any version above

point four dot 19 is also okay as well.

Now to declare our smart contract,

we use the contract keyword.

Very similar to how you will use the class keyword

to define the class in Java

if you have the Java background

and we are just gonna call our contract outdoor.

So we've defined the structure of our contract by using

the contract keyword and providing

a name for it, awesome.

And we also gonna define a variable in our contract.

We need to find the string variable called reading,

which we'll just store a string value

and the next thing we are gonna define

is a constructor.

So smart contracts can have a constructor,

that is invoked only once

and that's only when the smart contract

is first deployed to the Blockchain.

So if you are deploying it to the production Blockchain,

we're gonna call then but as we will see

in this example when we deployed

to our test Blockchain it will get invoked.

And the way we declare our constructor

is by saying function

using the function keyword

and then using the same name

as we did for the contract name

that's how the compiler can tell that

this is the constructor

and in our constructor,

we also want to provide the first initial greeting

that should be set

and we'll pass that in as a parameter

and just set it to our field, our greeting field

to be the initial value.

One more thing we are gonna do

is we are gonna declare this variable public

by just adding the public keyword

in front of the variable name

and what this does is

aside from making this variable public,

it automatically generates a getter function

for this variable.

So if I wanted to provide a public getter

for the greeting variable

you know normally I would have to do something

like this and explicitly declare it

that it returns string

and I would have to say something like this.

But just by adding this public key word,

this function is automatically generated for me

so I don't need to explicitly declare.

So one thing we are gonna add

to this smart contract is a way to change the greeting.

And we're gonna do that by declaring another function

and we're gonna call our functions set greeting.

And we also gonna pass in the new greeting

as a parameter into the function

and we are gonna do the same thing,

we are just gonna set our variable

to whatever parameter was passed in.

And there we have a very simple smart contracts,

very simple hello world smart contract

that gets initialized with the greeting, right

and anyone can read this greeting

from the smart contract,

because we declared the variable public.

And anyone can also set the greeting

on the smart contract.

So we wanna provide a bit more access control

to the set greeting function.

So how would we do that.

Let's take a look

So I wanna update this set greeting function

so that only the owner of this contract

only the person who deployed this contract

we can call the set greeting function.

So the first thing I need to do is key track

of who created this contract.

And the way I can do that is in the constructor,

I can declare an owner variable which is just going to

keep track of the person who has sent the message.

So when I invoke message dot sender it's referring

to the account where the address

that invoked this constructor.

And you can only invoke the constructor

where you are deploying it.

So this owner filed is of the address data type

and we'll also make it public

but it's gonna store whoever was the person sending

the deployment transaction for the smart contract

and we'll report that over here.

Now to make sure that only the owner can call

the set greeting function.

We are gonna use the require function

and the require function all it does is

it checks in condition and if it evaluates to false

then it throws an exception

and the transaction is reverted.

So the execution does not continue beyond that point.

So inside the set greeting function,

we are gonna make sure that owner equals

message dot sender.

So when I use message dot sender in this function,

it's actually different from

this message dot sender, right.

Because in this function this variable is referencing

whoever called the set greeting function

whereas in the constructor message dot sender

is referencing whoever called the constructor.

So using this require statement,

I can ought check that says

hey make sure that the person calling this method

is actually the owner

and if it's not then throw an exception

and don't continue going down

this function any longer.

And one more thing that I wanna demonstrate is

just a way to broadcast any you know event of interest

that occurred during execution

and the way we do that

is using something called solidity events.

And we can declare a new event

by just using the event keyword

and giving it a name and you know you can also pass

parameters to the event to provide

extra information about the event.

So in our case all we are gonna do is

provide the old greeting as well as the new greeting.

So that anytime the greeting is changed,

whoever is listening for that event is notified

and typically who ever the person or the application

that is listing for this events

are front ends which need to

you know update their state

based on changes to the smart contract.

And so we have declared our greeting changed event

at the top using the event keyword

and the way we fired the event

is just by calling the name of the event

and also passing in the parameters,

but if we pass in the parameter after

we have changed our greeting

then we'll lose track,

we'll lose reference to the old greeting

so we just gonna move this line

below the event so that we can print out

the old greeting as well as the new greeting.

So there we have a simple smart contract

that allows you to change and set a greeting

and it fires an event whenever

that greeting has changed

and tells you what the value was changed to,

okay awesome.

So we have written the solidity code,

you might notice, it looks very similar to JavaScript

so it shouldn't be you know too different,

but you know its JavaScript with data types

and some other extra features as well.

But we just saw a very simple example

of how to use some of those features.

So now let's see how we can actually run this code

inside the browser on a test Blockchain.

So like we said we select JavaScript VM

from the environment drop down.

We are just gonna keep it selected to

the first account, any account will do.

And in this dropdown, we are gonna select outdoor.

And as you can see to create a new instance

or to deploy a new instance of the smart contract,

we need to provide the initial greeting.

So the initial greeting will just be outdoor

and if I click create

we see that a new square pops up towards the bottom

of the run tab

telling us that a new instance has been deployed

to the test Blockchain notified by this JavaScript VM.

And we also saw you know some output printed out

in our terminal over here below

and it basically printed out a log of the transaction

that was invoked to deploy the smart contract.

So to deploy the smart contract,

we took this solidity code

compiled it down to EVM bytecode

which is just you can take as low level machine code

And we send that machine code to the Blockchain,

so in this case to our test Blockchain

running inside our browser

and that deployment is sent

using something called the transaction.

You can take up a just message being sent

to the Blockchain.

And in this message we,

let's take a look at the details of this message

that we sent to deploy this smart contract

to the test Blockchain.

So if I click the details button,

you know it'll tell me the status

that you know the transaction succeeded.

It will also tell me the address of this smart contract.

So whenever you deploy a new smart contract,

it is written, it is assigned an address,

when it is successfully deployed

and any further interaction with the smart contract

is done using this contract address.

We also see from tab which is just from field

which is just our address CA35B,

which matches up with what we have over here, right,

because this is the account that we selected to deploy.

And the to address is left empty

and it just says that since we are not sending

this transaction to any particular address,

we are deploying a new smart contract

to the Blockchain.

And it also indicates how much gas we provided.

So gas is just a unit of competition, right.

So each of these lines in solidity

translates to some EVM bytecode and each of those EVM

bytecode operations requires a certain amount of gas.

And it varies depending on what the operation is.

But you basically have to provide enough gas

for your transaction to complete

And after you have deployed the transaction

it will tell you, you know, how much gas it cost to

actually send the data to the Blockchain

which is the transaction cost.

And how much gas did it cost to actually run the logic

on the Blockchain which is the execution cost

and the execution cost in this case would just be

you know running the constructor

and initializing our greeting and our owner variables.

We are also given a hash for this transaction.

So this hash references this particular transaction

and the from address, the to address

as well as any data provided with it.

And the data I am just gonna increase this a bit,

the data is provided in this input

and this is the compiled EVM bytecode

that is sent to the test Blockchain.

So this is what the compiled solidity code

is translated into and this is the data

that is actually sent to the Blockchain.

And we also we since we provided

a greeting input parameter

this is also included in our transaction log

and since we didn't provide any ether with it

this just indicates the zero way.

This logs field also will print out any

events or other things of interest first

and these are, these logs will be forever stored

on the Blockchain so we can come back

and re-use them and revisit them

to extract information.

And we'll see how these logs

get printed out in a second.

But this is just the details of one transaction to deploy

our smart contract to the test Blogchain, awesome.

Okay and you'll also see that the buttons that

we have available inside our smart contract instance

line up with the functions that we have available

to invoke on the smart contract.

So we have the set greeting

for the set greeting function, we have this greeting

function as well which is auto generated for us

using this public keyword as well as the owner function

which is auto generated for us using

this public keyword.

So if I just click owner, right, it'll tell me the address

of whoever is the owner

and it matches up with the address

that we have selected over here

and so calling the greeting or the owner function

doesn't require any gas.

And that's because all we're doing in the greeting

and the owner function is reading data

from the Blockchain

and we are just retrieving data from the Blockchain.

We are not actually executing any code or any logic,

which is what gas is okay.

So gas is just competition, right,

and if you are running some competition,

then you need to cover the cost of that gas.

But in this case if you are just

retrieving the owner address

or if you are just retrieving a string greeting value

it doesn't actually cost any gas.

And we can see that in the calls

that are being printed out in the terminal over here,

right so when I clicked greeting

let's take a look at the details of this transaction, right,

and it will indicate to us that you know

this cost only applies when called by a contract,

but what we are seeing over here is that

you know it's slightly different from the transaction

that was required to deploy this smart contract,

which is where we are writing

some data to the Blockchain.

But over here we have a little less information

and we see that it didn't actually cost any gas

to retrieve this string value.

Yeah and the output of this invocation

was provided in our decoded output field.

So okay now let's see how

we can actually set the greeting.

So first let's test our require statement over here

to make sure that only the owner of the contract

can call set greeting.

So if I change my address that I am using, right

let's use our second address

and just one thing before I do that

you will notice that our balance for the first address

changed from 100 ether to 99.99999.

And that balance was reduced as a result of the gas cost

of deploying this smart contract to the test Blockchain.

So it's taken directly out of the first contract.

But let's quickly change it to the second account

and let's try this set the greeting to something else.

Right I am just gonna clear my terminal over here

so we can get the fresh output

and if I try to click set greeting let's see what happens.

So when I click details,

as well as look at the output of my transaction log,

but when I click details it tells me

that the transaction failed

but it doesn't tell me exactly on which line it fails.

So this is one of the limitations

of exception handling and solidity right now.

You can tell that an exception was thrown,

but you can't really get any more information

about the exception like some sort of string message

or what line it was on,

but this is feature that is currently in development,

but right now there is no easy way to figure out

like what line exactly the exception was thrown.

But we can also see more details

about this transaction.

We can see that it cost us gas,

so we have to provide gas.

And even though our transaction failed, right,

we still have to cover the cost of the gas ,right,

because it's still running competition,

it's still needs to go through the competition

to figure out that hey there is exception over here

so there is some cost for this transaction.

And yeah we can see our input,

which is just our encoded string,

which is outdoor

and also this input contains the information about

which function we are calling on our smart contract.

And we can see that the to address is the same address

as our smart contract, which is 692A

and that lines up with the address,

which is also shown over here, 692.

And we can see that our input parameter

was also included.

But we can see that the transaction failed

and which is will be expected

because we are not the owner of the contracts.

So we shouldn't be able to set the greeting.

And in the logs, we can see that the logs are empty

so we know that no events were fired.

Okay, so now let's try the same thing again,

by using the actual owner address, right.

So I'll switch back to the owner account,

and now if I try to click set greeting,

let's see what happens,

you gonna clear the terminal,

so we have it fresh and click set greeting, right

and we see our transaction log being printed out

and this time we see that our transaction was mind

and it succeeded, right,

so the to address again is just our contract address

and the input contains information about

which function we're calling

as well as any input parameters

and we also have hash for this transaction,

which uniquely identifies this transaction.

As well as information about the gas cost

of running this set greeting function.

And since the execution succeeded

and the greeting change event was fired on line 17,

we can see that it was printed out in the logs field

of our transaction, right.

And we can see that you know

it printed out the event name

which is greeting changed

and it printed out the arguments

which was the old greeting as well as the new greeting.

And we can verify that the greeting was updated

by just clicking the greeting button again

and we get the new string

that was passed into the smart contract.

So this is just a very simple example

of a hello world type smart contract

where we can read some data from it

like a string reading

and we can also write some data to it

and provide some access control around

that ability to write data to the smart contract.

So that brings me to the end of my example.

This is just a very gentle intro to solidity smart contracts

just to get you used to the syntax

as well as this interface of remix,

which is a really great interface

for developing your smart contracts.

And if you want to learn more

and get into more detailed examples

about smart contracts and some other codes

and limitation of them,

definitely check out our online courses

as well as our online articles.

One of the courses eth 101

is the course that I teach on Ethereum

and how to build solidity smart contracts

as well as how to built more complicated dApps

including the front end to interact

with the smart contract.

So I highly recommend checking those out

at blockgeeks.com and yeah thanks for tuning in

to this very simple webinar

on how to write your first smart contract.

And we look forward to see on blockgeeks.com.

For more infomation >> Create Your First Ethereum Smart Contract - Live Coding - Duration: 27:30.

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Обзор Smart TV Liberton 40AS1FHDTA1 - Duration: 4:41.

In the comments, you often ask for more

time budget TVs.

Especially in that with a good ratio of price and opportunity.

Against this background, I decided to figure out whether there are any,

among the cheapest?

Whatever frank "china", it showed normal and still

with a good guarantee for confidence.

Now the most popular requirements are 40 inches

and support for Smart TV - the search gave the TV from Liberton.

I certainly still googled and really - this is one

of the most accessible options with such parameters

for today.

Well, let's find out whether it can be considered,

if you need a normal TV for inexpensive.

Looks Liberton is good, primarily due to

thin frames around the screen.

At the back you can find a place to mount the Vesa 200: 100

and a good set of ports and connectors, including

HDMI, VGA and a pair of USB.

In the rest, nothing special, the TV as a TV,

so I turn to the main thing.

Decent matrix in the budget models, I have seen more than once,

so that here also waited for something normal.

In fact - not disappointed.

The picture is good, with Full HD resolution and wide

viewing angles.

Immediately I liked the factory calibration of the panel.

I'm kind of used to always look for flaws, look out for

disadvantages, but in this case: launched a movie, sat down to watch

and ... I look.

In general, nothing in the eye rushes and thank you.

If to a good image I was ready, then to the account

sound did not create any illusions at all.

Usually, state employees play flat and inexpressive,

but it turned out that this is not one of them.

Liberton really has a pleasant sound, especially in the context of price.

The range is wide, there is a noticeable bass, so

and you can listen to music.

At the maximum of the dynamics to hold dignified, and the very stock of loudness

with a head enough for a spacious living room.

Go ahead - Smart-platform.

Here it is presented Android version 4.4.

The menu is simple and convenient, basically, without any nooks.

I did not like just that the image settings

somehow it is not clearly hidden.

If for good, then they should be in the player,

and there is only the choice of audio track and the setting of subtitles.

To get the same to the cherished lines, you need to poklatsat

several times on the remote "Exit" and only then

Press the menu button.

As already said, I have a desire to twist something here

There was not, but suddenly you want to add brightness or contrast

- You will know where to look.

Otherwise, there are no comments.

The TV dual-core processor and gigabytes of RAM,

so the menu works quite quickly and without hangs.

Traditionally, there is access to the Play Market and the ability to render

the most important applications on the main screen.

All popular video formats are launched without any problems,

including mkv, mov and mp4.

Also liked the quick connection to wi-fi.

If there is no habit of turning off the television for the night

from the outlet, then even with a weak signal passes seconds 5,

not more.

I also want to touch on the service issue.

I like the approach of little-known brands,

which in order to gain trust,

give on their TVs an enhanced warranty.

At Liberton the whole 2 years.

This gives the confidence that I mentioned in the beginning.

Agree, choosing even the cheapest TV,

I want to know that you do not take junk, but something normal,

that it will last for many years.

So, let's sum up.

I would like to start with cons, but I'm

and nothing.

I can say about the location of USB.

If you hang a TV on the wall, then you do not get to them

and you need an extension cord.

I also noticed a leak of illumination in the corners, but, in fact, this

It is visible only on a white fill.

If you do not know what it is and why, you will not notice.

Pros, as it is not strange, you do not need to attract ears,

especially against the background of competitors in this segment.

These include: a pleasant appearance, an image,

sound, smart Smart platform and two-year warranty.

In general, if you need here is directly the cheapest 40-inch

TV with Smart TV, the first thing to consider

this Liberton.

He has a very good value for money.

If the video turned out to be useful, then put a kid, subscribe

on the channel and click on the bell.

Also write in the comments as you are such a budget

TV and whether you use flash drives or watch

all online?

Till!

For more infomation >> Обзор Smart TV Liberton 40AS1FHDTA1 - Duration: 4:41.

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97% of Climate Scientists Really Do Agree - Duration: 6:55.

97% of Climate Scientists Really Do Agree

"97 percent of climate scientists agree: Humans are causing global warming."

It's one of the most famous statistics in all of science: That experts, the people who

know the most about Earth's climate, agree–almost universally–that humans are warming the

planet.

Where does this 97% number come from?

The most famous source of the 97% agreement comes from a study in 2013 by Australian scientist

John Cook.

He looked at almost 4,000 scientific papers that made some statement about whether humans

were the main cause of climate change.

And 97% of those papers agreed with the consensus.

To make sure nothing was misinterpreted, he also asked scientists to rate the views of

their own papers, and they found the same 97% agreement.

It shouldn't surprise you to learn that people have attacked this study, saying its

methods were wrong, and that it miscounted things.

But even if we ignore Cook's study, turns out lots of other people have looked at this

question and found a similar answer.

Between 90-100% of experts agree the climate is changing, Earth is getting

warmer, and we're responsible for a lot of it.

What does it mean to measure consensus?

First, you identify the experts.

In this case, the experts are thousands of scientists who study climate and publish their

work in peer-reviewed journals.

Peer review means that every finding that's published is analyzed by people working in

the same field, people who really know what they're talking about.

It's not flawless.

Mistakes occasionally happen, but this system is built to correct those mistakes, and it's

by far the best process humans have ever come up with for doing good science.

Once we find this group of experts, we analyze their opinion: for or against a particular

idea.

Sometimes this is done by studying what scientists have written in their papers.

Other times scientists are surveyed directly.

This can even be done by listening to what scientists say in public.

Now some scientists don't explicitly express an opinion either way.

They're not included in the analysis.

Consensus is the fraction who support an idea divided by the sum of those who support plus

those who reject the idea.

All these different methods have ended up with the same conclusion: The people who know

the most almost universally agree about what's causing global warming.

But if you ask everyday people what they think the consensus is, they guess that only 55%

of climate scientists agree.

That's way off from what experts actually think.

Why does this gap exist?

Because–surprise!–there are people out there who spend a lot of money and effort

manufacturing doubt.

A big argument among critics of the 97% agreement is that in a lot of research papers, scientists

never specifically write "humans are causing most global warming".

These papers are usually excluded from studies about consensus, because they don't give

a position either way.

People draw different conclusions from this.

Some say not giving a position is exactly what you'd expect from scientists who agree

that something's basically settled, like how physicists don't write "gravity is

real" in every single paper, biologists aren't regularly citing Darwin and natural

selection.

They're accepted as true.

But critics of global warming science claim that any scientist who doesn't specifically

say in every paper that they agree with the consensus, should be counted as uncertain,

or even counted as rejecting it.

And this is a very strange claim to make, that any climate scientist who doesn't write

"I believe that humans are the main cause of global warming" is actually uncertain

or doesn't believe that humans are the main cause of global warming.

To show you why this is flawed, let's apply the same logic to another scientific idea.

Plate tectonics is the theory that Earth's crust is made up of several large chunks that

move over time, and that new crust is made at some places and eaten up at others.

Not a controversial idea today, but you might be surprised to learn that before the 1950s

and 60s, most scientists didn't accept it.

Researchers looked at recent geology papers using the same criteria the critics of global

warming science claim should be used on climate consensus: That any paper that doesn't explicitly

state that "plate tectonics is real" should be counted as uncertain, or as rejecting it.

Turns out, not one single paper, out of hundreds, specifically endorsed the theory of plate

tectonics.

So clearly, plate tectonics is a hoax?

Doubt about what's causing climate change really only exists among people who… how

do i put this… aren't experts.

And that's a big problem, because when we think scientists are divided on an issue,

we're less likely to think the issue is a problem.

This also means if more people understood how much agreement there really is about humans

causing climate change, we could start paying attention to more important questions like

"what do we do about it?"

People sometimes say that science doesn't work by consensus, or by agreement, and that

every truth must be decided by experiment.

But this is wrong.

Consensus, or agreement, is a hugely important part of science.

When scientists do experiments, they don't repeat or re-establish every single bit of

knowledge that got them to that point.

They, and I hope we, trust in the process of science.

In every field, there are things that are well-enough proven, that are agreed upon,

and these are where scientists start from to journey out into what's actually unknown.

And when it comes to the science of global warming and climate change, experts agree

overwhelmingly on the cause.

maybe it's time we accept the consensus, I think it's time we start talking about

what's really important.

That's why I'm excited today to announce a new project here on YouTube, one I've

been working on for most of the last year.

It's a new channel dedicated to stories about climate change and climate science,

called Hot Mess.

Have a look:

It's brought to you by the same amazing people that make these awesome videos here

on It's Okay To Be Smart, along with a few new faces

Hot Mess is going to be the best channel on YouTube for stories about our planet's changing

climate.

I know that's something that a lot of you care about.

So come join us over at Hot Mess.

Stay Curious.

For more infomation >> 97% of Climate Scientists Really Do Agree - Duration: 6:55.

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JIO Smart TV Latest News || JIO Laptops Launch | Reliance Jio Latest Updates | Omfut Tech And Jobs - Duration: 3:53.

JIO Smart TV Latest News

JIO Laptops Launch

Reliance Jio Latest Updates

Omfut Tech And Jobs

For more infomation >> JIO Smart TV Latest News || JIO Laptops Launch | Reliance Jio Latest Updates | Omfut Tech And Jobs - Duration: 3:53.

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HGTV Smart Home 2018 - Duration: 43:14.

For more infomation >> HGTV Smart Home 2018 - Duration: 43:14.

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HEADPHONES OVERVIEW Vontar EH01 Smart | SALES LEADER Aliexpress | KITAYPROM - Duration: 1:40.

Dear friends!

I want to introduce you to the next sales leader

on Aliexpress wireless Vonter headphones.

The ideal solution for those who likes an active image

life, music and communication, but does not like dangling

wires from the headset.

How to describe in a nutshell these headphones?

Fashionable and athletic.

Their color solution is suitable both men and women.

Soft Silicone Hook for the ear plus a combined

ear cover will not allow headphones to fall even in

time intensive training.

A light weight.

Only 5.5 grams.

So, the absence of fatigue with prolonged wearing.

Time in music mode about 2 hours.

Charging time is about 1.5 hours.

The range is up to 10 meters.

Main functions: response, music, play / pause,

exit.

Excellent sound insulation and reduce noise.

Fast and stable connection.

Convenient and compact charger device.

If you are an active music lover loving comfort, then pay

focus on the link in description under the video.

More information about the product you will find by going

on it to the seller's website.

I'm saying goodbye to you the next review.

Do not forget to subscribe on the channel Kitaiprom.

For more infomation >> HEADPHONES OVERVIEW Vontar EH01 Smart | SALES LEADER Aliexpress | KITAYPROM - Duration: 1:40.

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Nanit Smart Baby Monitor and Wall Mount - Camera with HD Video & Audio, Sleep Tracking, Night Vision - Duration: 0:34.

Nanit Smart Baby Monitor and Wall Mount - Camera with HD Video & Audio, Sleep Tracking, Night Vision, Temperature & Humidity Sensors, and Nightlight

Coverage for product breakdowns and malfunctions. Free shipping on all repairs with no deductibles or hidden fees. Fully transferable with gifts. Cancel anytime, full refund in the first 30 days.

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For more infomation >> Nanit Smart Baby Monitor and Wall Mount - Camera with HD Video & Audio, Sleep Tracking, Night Vision - Duration: 0:34.

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Nanit Smart Baby Monitor and Wall Mount - Camera with HD Video & Audio, Sleep Tracking, Night Vision - Duration: 0:34.

Nanit Smart Baby Monitor and Wall Mount - Camera with HD Video & Audio, Sleep Tracking, Night Vision, Temperature & Humidity Sensors, and Nightlight

Coverage for product breakdowns and malfunctions. Free shipping on all repairs with no deductibles or hidden fees. Fully transferable with gifts. Cancel anytime, full refund in the first 30 days.

SquareTrade Protection Plans are only valid for new products purchased at Amazon within the last 30 days.

For more infomation >> Nanit Smart Baby Monitor and Wall Mount - Camera with HD Video & Audio, Sleep Tracking, Night Vision - Duration: 0:34.

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Smart Roadster 0.7 AUTOMAAT 54dkm NAP Org NL Uniek Rijklaarprijs Inruil mogelijk - Duration: 1:11.

For more infomation >> Smart Roadster 0.7 AUTOMAAT 54dkm NAP Org NL Uniek Rijklaarprijs Inruil mogelijk - Duration: 1:11.

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Owlet Smart Sock 2 Baby Monitor - Track Your Infant's Heart Rate and Oxygen Levels - Duration: 0:34.

Owlet Smart Sock 2 Baby Monitor - Track Your Infant's Heart Rate and Oxygen Levels

Coverage for product breakdowns and malfunctions. Free shipping on all repairs with no deductibles or hidden fees. Fully transferable with gifts. Cancel anytime, full refund in the first 30 days.

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For more infomation >> Owlet Smart Sock 2 Baby Monitor - Track Your Infant's Heart Rate and Oxygen Levels - Duration: 0:34.

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Delta Children Lancaster Rocking Chair featuring Live Smart Fabric, Linen - Duration: 0:34.

Delta Children Lancaster Rocking Chair featuring Live Smart Fabric, Linen

Coverage for product breakdowns and malfunctions. Free shipping on all repairs with no deductibles or hidden fees. Fully transferable with gifts. Cancel anytime, full refund in the first 30 days.

SquareTrade Protection Plans are only valid for new products purchased at Amazon within the last 30 days.

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