What is background radiation?
So, we live here on planet earth, I assume you're watching from planet earth
I hope you are...
..actually do I?
Anyway...
on earth there are various types of radiation which we are exposed to
all the time some of that radiation comes from the sun as cosmic rays
some of that comes from the food we eat - some of it comes from rocks which might be nearby
some of it might come from medical equipment - if you were going to have an x-ray
some of it might come if you walk over Hiroshima or Chernobyl
or somewhere which has experienced some sort of nuclear disaster like Fukushima
but most of it comes from radon gas - 50% of all the background radiation comes from
radon gas
which has the symbol Rn and it's just this colourless, odourless
radioactive gas which is present in the air all around us
it depends on what kind of rocks are nearby
as to its concentration and how prolific it is
but in general, most of the background radiation is accounted for from this radon gas
there are little spots within different countries with slightly greater concentrations
depending on what the rock type around it is certain rocks give off
more radiation than others
background radiation isn't really a problem for us in general
unless you're in exceptional circumstances
if you're an airline pilot you are exposed to a few more cosmic rays than
us down on the earth at sea level because most of the
dangerous cosmic rays are absorbed by the earth's atmosphere
so not many of them actually make it through the atmosphere
through the ozone to actually affect us although some do, about 10-15% roughly
most of it (background radiation) comes from radon gas
we get some from food, we get some from...
... rocks we get some from medical imaging
only a tiny tiny fraction - I mentioned at the beginning
nuclear power stations and fallout etc etc
but actually only a tiny fraction of background radiation does come from those sources
around 1% so it's really a minuscule amount in the grand scheme of things
so that's background radiation for you
you can learn more about half life here or the types of radiation here
so you can check those out
this is physics friend - you can subscribe there
and, if you have any comments or questions then please do just write them in the box
and i'll just type back to you and answer them so...
thanks for watching and i'll see you again next time
bye bye
For more infomation >> BACKGROUND RADIATION || What is it? Where does it come from? - Duration: 2:58.-------------------------------------------
Clark is waiter at Roadhouse 'Man of Steel' Featurette - Duration: 2:52.
Okay, I'm back to talk a little bit about Allison Crowe and the scene in the bar.
One of the things that sort of establishes the scene is this music, this...
That Allison is performing and, uh...
I'm a big Johnny Cash fan...
...and I'm a big Allison Crowe fan...
...so the combination, to me, seemed like an awesome opportunity...
...if we could make it happen.
Allison and I talked about trying to get some of her music...
...in one of my movies whenever we could.
And I thought, well, if I just put her in the film, then there's no way that it won't work.
So that's where you get Allison from.
But he keeps trying to get me into movies, and it's amazing and--
I first kind of met Zack over the Internet about songs online and things like that.
But I think about four or five years ago...
...the first one would have been the Watchmen...
...and he was looking to do "Hallelujah"...
...and then the second one...
...we were looking at another song for Sucker Punch.
And so now we have Johnny Cash's "Ring of Fire"...
...and an altercation ensues.
There's a fight. So, yeah, it kind of fits perfectly.
So even though you're singing the lyric, you see something about to happen.
Yeah, yeah.
The music forms a backdrop to this scene where Henry and Ian Tracey kind of face off...
...and Henry did have to put with a lot.
Getting beer poured on him, getting a beer can thrown at him, all that stuff.
So it's not easy being Superman all the time.
But, you know, the character "Ludl0w" will get his comeuppance.
--Just leave when I'm good and ready.
[MEN LAUGHING]
Ooh.
Yeah, I'm all out of beer.
Oh, there he is.
Playing a jerk is, uh...
It has its good sides.
MAN: Don't hit him in the head. - Hey, asshole.
Hey, asshole, don't forget your tip.
Everything that you've felt like saying and doing to people in the past throughout your life...
...when you control yourself, you can ball it up into one little moment...
...of fury and sarcasm.
It's good. it-- You know, when you--
If you're playing good guys, you have to make everybody like you.
If you're a bad guy, you don't have to care.
This dude, he broke my truck. He did a really good job.
As you can see...
...it's jackknifed in an unusual position.
And I'm about ready to run because it's probably gonna blow.
I think I might have to watch what I say to people from now on...
...otherwise my toys will be broken and,uh""
What can I say?
Lesson learned. Thanks, Superman.
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"There is violence, we all face it, attacks everywhere" - Duration: 2:02.
This time limit is very hard for us
especially for indigenous peoples
because it claims that there will be no more legal recognition of our territories,
and those Indians who have occupied their lands since 5 October 1988,
all their villages can be evicted.
They can legally evict us,
all of us, indigenous peoples.
This is the time limit and what it means.
The most worrying things for us is that
President Temer himself
who is anti-indigenous
is pro the Supreme Court voting on this time limit
which will happen on 16 August at 9.00 am
So this time frame means this:
It means that everything will stop
and their will be no more legal recognition of indigenous territories
this is the case especially for us the Guarani Kaiowá people
it's so difficult there in Mato Grosso do Sul state
there is violence, we all face it,
attacks everywhere, attacks by paramilitary
criminalization, racism.
Imagine today if this time limit were approved,
which is being supported by the majority of the Chamber of Deputies and the Senate
and also by the president of Brazil.
So this is worrying for us
this time frame is very hard for us.
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This Farm in Mexico is Growing a Solution to Climate Change (HBO) - Duration: 3:29.
— Ricardo Romero inherited this former cattle ranch in Veracruz, Mexico from his father decades ago,
and has spent the years since turning it into the Las Cañadas Farm Cooperative.
There, he's been at the forefront of a practice known as carbon farming.
— Come here, I'll show you these plants.
I love these plants.
— While sustainable farming methods have a long history in Mexico,
Ricardo's innovation was expanding this tradition to carbon sequestration.
Carbon farming may sound like it involves lab coats and heavy machinery,
but it's a lot more simple than that.
It's the practice of choosing plants species
that absorb and store more carbon than others.
— When any plants grows,
it takes the CO2 to make branches, to make trunks.
Some plants have more carbon than others.
So carbon farming takes the carbon in the atmosphere that is in excess,
and puts it in the soil, or in the trunks, in the system.
— For instance, one plant that's incredibly effective at sequestering carbon is bamboo.
One acre of bamboo forest can take almost five tons of carbon out of the atmosphere every year,
the same amount emitted by a car.
According to researchers at the Ohio State University,
if farmers worldwide did what Ricardo does,
they could take up to 1.2-billion tons of carbon out of the atmosphere each year for 100 years,
bringing levels down to where they were in pre-industrial times.
— We're in a bamboo forest right now, but is this all to it?
Are there other parts to this?
— At Las Cañadas, cows graze among trees, which they help fertilize,
which, in turn, store much more carbon in their deep root systems than grasses alone.
Ricardo's sheep play a similar role,
working to conquer an invasive grass species that once plagued the farm.
From there, they also fertilize macadamia trees,
the nuts of which are a major source of fat and protein to farmers' diets.
All of this provides for a system that's not just environmentally progressive,
but allows Ricardo and his community to live almost entirely off of the land.
But Ricardo's system is not without its challenges.
The setup requires more human labor than traditional farming
because planting and harvesting is done by hand,
which might make carbon farming hard to scale up.
Also, Ricardo's luscious forest might not grow so well in other parts of the world.
— So, you were able to make this in a Mexican paradise in the mountains,
with a pretty good climate for growing everything that you need.
Could you do this in a place like Atlanta, Georgia?
— So you think this would be possible in most any other place
as long as you adapt it to whatever climate you're in?
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COC Hack कैसे करें | Unlimited Gems, Gold Coin | is it possible? Reality Exposed of youtube videos - Duration: 3:15.
For more infomation >> COC Hack कैसे करें | Unlimited Gems, Gold Coin | is it possible? Reality Exposed of youtube videos - Duration: 3:15. -------------------------------------------
Vale Tudo (Everything Is Allowed) - Duration: 3:47.
I'm going to tell you a love story! Once upon a time there was a man and a woman.
They met at a party.
They started to date. Then they got married.
They had 2 kids and a dog and they lived happily ever after.
Everybody already knows this story! I'm going to tell you another one!
A man and a woman meet each other. They marry.
They have 3 kids. They can't stand each other.
The man asks for a divorce because he realized he's gay and wants to be with Diego, the gardener.
The man is happy with his new partner and the woman is happy with her new toy.
Another love story!
A man and a woman get married. Their friends, a man and a woman, also get married.
They have 2 kids and then break up. Their friends also have 2 kids and break up.
The man marries the woman from the other couple and have another kid.
The woman marries the man from the other couple and also have another kid.
Everybody knows each other and they have sunday lunches
to celebrate this family tree that looks like a...
Hypercube.
Another love story!
A woman and another woman meet at a street carnival.
The hook up intensely in the portable toilet.
They don't exchange their WhatsApp numbers.
They never see each other ever again in ther lives and they couldn't be better.
Another love story!
A transexual man marries a homosexual man. The man gets pregnant with twins.
Suck it, biology!
Another love story!
A woman sees a handsome man in the subway.
His beauty doesn't get out of her mind, so she decides to spend some time in the bathroom.
Another love story!
A man is reading articles on the Internet and finds out that
another man had a sexual relationship with a dolphin.
This doesn't get out of his mind, which makes him spend some time in the bathroom.
Wait, is this serious? A dolphin?
Damn…
So, let's go to the next one.
Another love story!
A transexual woman is dating a man 20 years younger than her.
The man's mega conservative family is not happy about it.
But the couple decides to run away to Uruguay, where they can live happy in peace.
Suck it, traditional brazilian family!
Another love story!
A woman and a man are asexual and they are dating.
Another love story!
A polysexual man is dating a heterosexual couple and another man.
Another love story!
An arromantic man is with nobody because he doesn't want to be with anybody.
A man with two…
Cocks...
Is on an open relationship with a woman and another man.
And this is not a joke.
Another love story!
Hey, producer, how many stories are left?
407?!
I have to go to the dentist today, can I finish this now? Thanks!
Here is the thing:
As you see, there are many love stories, many ways to love someone.
And all of them are correct, it doesn't matter what they say.
Respect, affection, companionship, loud, quiet
with good moments, bad moments, long lasting or short term.
It doesn't matter its form, love with no shame, love as you can.
Because when it comes to love, everything is allowed.
Everything Is Allowed
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What is orthorexia? - Duration: 1:32.
For more infomation >> What is orthorexia? - Duration: 1:32. -------------------------------------------
Meet the Ezidi man whom IS kidnapped 77 members of his family - Duration: 2:47.
It is very miserable to lose your beloved people.
Especially when we get no information about them.
Haji [Kurdish Ezidi] is a man who suffered a heavy loss due to the Islamic State (IS).
Because 77 members of his family and relatives arrested by the IS.
So far, the whereabout of most of them remain unknown.
"77 members from my family and relatives have been arrested [by IS]."
"They were my children, nieces, sisters, brothers, and cousins."
"So far, 31 of them have been freed, 46 remain in their hands."
"Both my brothers with 16 children are still under IS control."
"My two sisters with their families, my son-in-law, and my cousins with their families."
Haji has rescued many of his family members from IS by buying them.
As he says, one of his daughters is in Raqqa, but can't rescue her due to not having enough money to pay for.
"We no longer able to buy [rescue] them."
"I swear, I bought my sister's daughter by US $15,500 [from IS]."
"We registered their names in the office of Kidnapped Ezidi people [in the Kurdistan Region], but haven't received any amount of money yet."
"Yesterday, I got a call that one of my daughters is in Raqqa now."
"IS is asking for $16,000 to free her. I can't buy [rescue] her. I will give up."
Haji states what happened to his family is all because they are ethnically Kurds.
He says if Kurdistan was a country before, IS wouldn't have been able to hurt them.
"We wish Kurdistan was a country before this happened to us [Ezidis]."
"This wouldn't have happened to us if Kurdistan was a country."
"Especially we Ezidis. We didn't have anyone to back us. We rely on Kurdistan [Region]'s support."
Following the fall of Sinjar (Shingal) in Aug 2014, thousands of Ezidis fell in the hands of the IS.
Kurdistan Regional Government (KRG) has been able to rescue many of them, yet thousands of Ezidis remain under IS control in Iraq and Syria.
That some of them are Haji's family members.
Kurdistan 24 Correspondent Masoud Mohammed Reporting from Essian IDP camp - Duhok
English Subtitles by Mewan Dolamari
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