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In the “Atoms In Motion” introduction to Richard Feynman’s famous Lectures on Physics (which you can actually watch, thanks to Microsoft), there’s a very interesting footnote. I saw it in the condensed and immensely enjoyable Six Easy Pieces, which everyone should read:

“One can burn a diamond in air”

That took me by surprise. But it’s true! The video above from Theodore Gray (who is really good at burning stuff) shows that diamond will ignite if brought to a certain temperature and given enough oxygen to latch on to. Like Feynman said, those carbon atoms and oxygen atoms love each other, and want to snap together (which gives off heat), but enough input energy must be applied first to break down the diamond crystal, (which also makes carbon atoms pretty happy).

Interesting note about cheap old zirconium in there, too …

(tip of the torch to Freelance Astrophysicist, where I found the video)

    • #science
    • #video
    • #physics
    • #chemistry
    • #education
    • #diamond
  • 2 days ago
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Nominate your favorite science audio and video projects for Science Studio’s “Best Of” collection!
I love science multimedia, you love science multimedia, everyone loves science multimedia (or at least they do if they want to be friends with us). That’s right, YouTube videos, animations, radio, podcasts, professional or indy … it’s all fair game. And Science Studio will be choosing the best and brightest for their anthology later this year.
Anything published in 2012 is fair game, which sadly means that MY YouTube channel is not eligible (boo-hooooooo :( I know you wanted to nominate all my videos).
Go submit your favorites! Or your favourites*! They deserve it.
*I’m bilingual.
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Nominate your favorite science audio and video projects for Science Studio’s “Best Of” collection!

I love science multimedia, you love science multimedia, everyone loves science multimedia (or at least they do if they want to be friends with us). That’s right, YouTube videos, animations, radio, podcasts, professional or indy … it’s all fair game. And Science Studio will be choosing the best and brightest for their anthology later this year.

Anything published in 2012 is fair game, which sadly means that MY YouTube channel is not eligible (boo-hooooooo :( I know you wanted to nominate all my videos).

Go submit your favorites! Or your favourites*! They deserve it.

*I’m bilingual.

    • #science
    • #education
    • #science studio
    • #video
    • #podcast
    • #radio
  • 2 days ago
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Pruney fingers: A gripping story

Mark Changizi brings you this lesson from TED Ed all about pruney fingers. Why do we have such an odd anatomical adaptation? Is it simple swelling of wet skin, like a rehydrated sponge?

Well, that doesn’t make much sense, because we know that people with nerve damage in their hands don’t get pruney fingers. So there’s some sort of active process going on.

The current theory says that our pruney fingers are like rain treads on tires, channeling water away and helping us grip in wet conditions. 

Mark Changizi should know. He wrote a paper all about this wrinkly research!

Source: youtube.com

    • #science
    • #video
    • #education
  • 3 days ago
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Our Atmosphere is Escaping!

Oh gahd! Quick! Take a deep breath!! Someone save Minute Earth!!!

What’s that? Oh … we have nothing to worry about? It’s only losing hydrogen and helium? And it will take billions of years to lose that stuff? Whew.

Bonus: Check out my YouTube vid about just how small (and shared) our atmosphere really is.

Source: youtube.com

    • #science
    • #education
    • #earth
    • #atmosphere
    • #video
    • #minute earth
  • 4 days ago
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Discovery, Animal Planet, and History Channel exposed for killing animals for profit

climateadaptation:

These channels are failing the spirit of conservationism and education. They are failing inspiring awe in young people. Failing much needed inspiration in a very confused and conflicted world.

These shows are failing their core values, their main purpose, which is leadership in environmentalism and cultural education. Far worse, they are failing millions of young people - millions - who look up to them.

Please join me in asking Discovery, Animal Planet, and the History Channels to stop, apologize, and correct.

That’s an important read up there, folks. These “reality” shows are feeding an outdated and unscientific view of predator species. These are channels founded on principles of education and conservation (TLC, of course, left the building years ago). Are they willing to sacrifice that for what appears to be gratuitous bloodsport?

Like any media, you can vote with your eyeballs. And if you support any kind of rights for wild animals and natural spaces, you can not support these programs. If the account above is true, shame on these networks.

It speaks to part of a larger issue with nature films. The amazing footage we see in shows like Africa, Planet Earth, and Frozen Planet is rarely the result of serendipity. It involves years of careful research and preparation to maximize the chances of capturing nature’s majesty on camera, and what is captured is highly edited to create story, drama and emotion. These are uniquely human interests, and nature doesn’t include them in her original script.

That’s not to say we are being fleeced all the time. People like Sir David Attenborough take these concerns very seriously, and constantly strive to find the balance between entertainment and true nature in every varying instance. What we watch is real. But is it REAL?

I wonder how many people realize that, for instance, the famous polar bear birth scene from Frozen Planet was filmed in a zoo? Disney’s adorable Chimpanzee movie was not a documentary, but rather spliced together to create an emotional tale of adoption. Jason Goldman put together a great collection of opinions on the matter.

How far can we take allowances to deliver good edutainment before we are delivering bad science? The “reality” shows surely fail the test. But the others? What do you think?

    • #science
    • #education
    • #nature
    • #film
    • #animals
  • 5 days ago > climateadaptation
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Space Sounds - New Episode of It’s Okay To Be Smart!!

There is no sound in space.

In the near-vacuum of space, there is nothing to transmit the physical waves that we need to perceive sound. But that doesn’t mean we can’t MAKE sound from space.

This week, I channeled some inner Sagan, got a bit artsy, and I’m happy to feature several brilliant folks using scientific data to create “space sonification” projects. From the longest palindrome ever created to a chorus made from Earth’s magnetic field, these pieces truly lie at the intersection of art and science. More than just art, they allow us to perceive patterns in complex data in a completely new way. Some of them are actually used as part of space research projects!

Perhaps it answers the question: If the universe had a voice, what song would it sing?

For those of you who follow the blog in addition to the YouTube channel, you’ll get some special treats this week when I feature even more space sonification examples that we couldn’t fit into this episode!

FULL Versions of the pieces featured in this week’s video:

Robert Alexander - Transit of Venus 

Semiconductor Films - “20 Hz”

Van Allen Belt chorus

Daniel Starr-Tambor - “Mandala” (this piece is the longest palndrome ever created, at 62 viginitillion notes!!)

Source: youtube.com

    • #science
    • #space
    • #video
    • #iotbs
    • #pbs
    • #sonification
    • #education
    • #sciart
  • 5 days ago
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The way we try to recruit girls into STEM fields is all wrong. We typically compare them to some great woman or someone that has gone before them. We are saying, “Hey, you can be like Madam Curie or Sally Ride.” It is recruiting by intimidation. We need to change that message. We need to recruit by appealing to WHY we need them in STEM. We NEED you to help make the world a better place We NEED you to help discover the cure for cancer. We NEED you because you have the ability to change the course of humanity for the better.

Tim Holt on why we still see the number of females in STEM fields fall way behind their male counterparts. Also see how geography paved the way for women in science.

(↬ gender and science)

(via scinerds)

Source: explore-blog

    • #science
    • #stem
    • #women in science
    • #education
  • 6 days ago > explore-blog
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Do you identify with LGBTQ? Do you work or study in STEM? Take a survey and help to make sure the issues of this community are not overlooked!
My road through working and studying in science has been relatively easy (except for the usual academic challenges). But I’m a straight, white male, and I haven’t had to experience the explicit and systemic prejudices that so many people have to deal with every day, even in such a “progressive” field as this. But I’ve met many folks over the years who have had to deal with that, and it’s not easy for some (to make the understatement of the ever). To feel welcome, comfortable, equal and wanted in STEM fields (and in the world at large) … that’s what people deserve, and that’s the environment we should work to create.
That’s why I am so glad to hear that Jeremy Yoder and Allison Mattheis have put together this survey. By finding out how people’s careers and experiences relate to their peers, we can see where work remains to be done. It’s a great model for other groups.
Help spread the word, and if you or someone you know that works or studies in STEM wants to take the survey, visit http://bit.ly/queerSTEM
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Do you identify with LGBTQ? Do you work or study in STEM? Take a survey and help to make sure the issues of this community are not overlooked!

My road through working and studying in science has been relatively easy (except for the usual academic challenges). But I’m a straight, white male, and I haven’t had to experience the explicit and systemic prejudices that so many people have to deal with every day, even in such a “progressive” field as this. But I’ve met many folks over the years who have had to deal with that, and it’s not easy for some (to make the understatement of the ever). To feel welcome, comfortable, equal and wanted in STEM fields (and in the world at large) … that’s what people deserve, and that’s the environment we should work to create.

That’s why I am so glad to hear that Jeremy Yoder and Allison Mattheis have put together this survey. By finding out how people’s careers and experiences relate to their peers, we can see where work remains to be done. It’s a great model for other groups.

Help spread the word, and if you or someone you know that works or studies in STEM wants to take the survey, visit http://bit.ly/queerSTEM

    • #science
    • #lgbtq
    • #stem
    • #education
    • #be an ally
  • 1 week ago
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Last week, someone announced that they had 3D printed a gun. Why don’t we remind ourselves how they can also inspire young inventors?

The heartwarming story of an 11-year-old and his 3D printer, via On The Media.

Source: onthemedia.org

    • #science
    • #technology
    • #education
    • #3d printing
    • #video
    • #on the media
    • #npr
  • 1 week ago
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What is Evolution?

Excellent video from Stated Clearly explaining just what evolution is … using great illustrations from Rosemary Mosco’s Bird and Moon comics.

This is a great video to share with friends/enemies/confused relatives that might have trouble accepting evolution and how simple it can be to understand. 

I’d like to add one thing to this video. Single amoebas, pairs of parents and a few children are used in these evolution illustrations to simplify the concept of evolution, but it’s important to remember that evolution is something that happens to populations, not individuals. The changes within a generation are random. It’s only after those changes have been passed on for several generations that a survival advantage or disadvantage (followed by either more or less individuals carrying the trait) occurs. That’s where evolution happens, it’s not in the change itself. And sometimes even harmful traits can become frequent in a population, like we see in diseases that are prevalent among isolated ethnic groups.

Bonus: I’d also recommend Understanding Evolution’s “Common Misconceptions” FAQ for those who want to dig deeper.

Source: youtube.com

    • #science
    • #evolution
    • #video
    • #education
    • #birdandmoon
    • #stated clearly
  • 1 week ago
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About

I'm Joe Hanson, Ph.D. biologist and host/writer of PBS Digital Studios' It's Okay To Be Smart. Check out my "Episode Extras" here. There's a lot of amazing science out there. Let's go discover it together.

"Everyone's favorite Feynman of the Tumblr era" - Maria Popova

Joe's science book recommendations, from brains to biology to space to art to physics.

This is an indie blog that takes many hours a week to publish. If you'd like to support It's Okay To Be Smart, please consider even a small donation.

One of Time Magazine's 30 Must-See Tumblrs - 2012

Featured in The Best Science Writing Online - 2012

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(Email: itsokaytobesmart at gmail)

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I'm working to change the way science is communicated and restore it to its rightful place.

Want to see more great science-y stuff? Check out my LINKS page for some of my favorites.

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