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Building a perfect igloo takes cool science!
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If you ever find yourself stranded in the snowy Arctic (or bored in Minecraft), you’re gonna need to know how to build an igloo. But how can building a house made of ice keep you warm? The science behind building an igloo is the same reason that otters and reindeer don't freeze to death!
There really ARE 50 Eskimo words for snow: http://wapo.st/2iwThf3
PBS Idea Channel - An Infinite Number of Words for Snow https://www.youtube.com/watch?v=CX6i2M4AoZw
Why there’s no such thing as cold: https://www.youtube.com/watch?v=Akd7MMRKDwc
How early humans settled the Arctic: https://uaf.edu/files/olli/Denbigh-Slides_lowres.pdf
How to build a scientifically perfect igloo: http://www.popsci.com/how-to-build-an-igloo
It’s Okay To Be Smart is hosted by Joe Hanson, Ph.D.
Twitter: @okaytobesmart @DrJoeHanson
Produced by PBS Digital Studios
Music via APM
Stock images from Shutterstock http://www.shutterstock.com
Regarding use of the word "Eskimo" in this video: We are now aware, thanks to many polite comments from our audience, that this is viewed as a derogatory term among many native peoples of Canada, as well as in some Arctic regions. Several of our references centered on Alaskan natives, among whom this term is more commonly accepted. Additionally, we used the term in reference to native languages, which are more commonly referred to as Eskimo or Eskimo-Inuit, and not the people, but we should have been more clear and sought out another term. We apologize to those we offended, and have learned a lot. We'll do better in the future, as we always aim to do.
What bunk. This video is just random associations. An igloo keeps you warm for these reasons: 1. It blocks the wind 2. The sleeping platform should be above the level of the door opening, heat rises so the dome captures body heat and warm breath. [So good igloos are usually dug down a couple of feet.] 3. The temperature in an igloo with a person or a candle will rise to the melting temperature of snow 0 degrees C at which point any additional heat begins to melt the interior walls. My experience is they drip. [block up part of the door, but make sure there's a small opening size of your fist high on the dome on the opposite side. You could suffocate in an igloo. And have a sheet of plastic to put over you and your sleeping bag. 90 percent of the drips in an igloo seem aimed at your forehead or an eye.) 4. Air in the snow? Okay.good point. A snow igloo is probably warmer than a solid ice one (I don't have any experience with an ice igloo). So inside an igloo no matter how cold it gets outside will be about 0 C, which is better than high winds and -50C . If you'd like to make an igloo, and I think you should, you don't need anything fancy. I made one with a machete. Watch Nanook of the North a few times to see how he did it and then find some deep snow you can cut into blocks. It'll take all day. Wear snow pants.
Catenary? I don't think so. I'll watch Nanook again.
Not a catenary. Simple round arch. Here's a couple of guys who know something about igloos https://youtu.be/0W05zqydFsE
This channel worries about names while disrespecting the skill and intelligence of the people who invented the igloo.
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Bruh you mad dumb if you think radiation uses convection to transfer heat... radiation is heat transfer between two solid surfaces and convection is heat transfer in a liquid (which air is classified as)
I’m actually Alaskan Native and I am Inupiaq, or Eskimo. The word Igloo actually means “home” but our actual word for it is something along the lines of Igluoq, but. when the Russians came they just made it igloo. also, we actually didn’t live in igloos. we made them for storage of animals that we killed and as a temporary home for hunting during the winter. Our more permanent home during the winter were semi-subterranean homes, which the permafrost in the ground and bones from dead animals helped structure it. i get all of this information from my ancestors and firsthand experience, and also because I worked at the Alaska Native Heritage Center. Message me if you’d like more info
John B Ok, no problem. But what do we call them next year and a few years after that? I don’t know anymore what is going to offend some one. What do you call a person with really dark skin, or light brown skin???? I am afraid to call them anything. My sister and I are white but we often call each other white honkys. Lol
Learning how to draw cartoon animals from the farm is not such a difficult task! Weve grown up surrounded by them! Farm animals are everywhere: In blockbuster movies, childs books, greeting cards. their shapes and images are printed in our minds!
In this section, I will show you how to determine what are the physical uniqueness of each animal and how to work with them. Then, you can practice drawing each cartoon character using basic shapes.
You will have the opportunity to make nice illustrations, practice sketching and cartooning using short easy lessons and complete your creation using a drawing software to create vector art if you want to! Cartoon drawing is really fun once you get into it!
Dont be afraid to try until you get it right. This method is really simple, but requires practice and observation. So, sit back and relax. Learn how to draw animals from the farm and start your journey on a good note!
Lets try s few basic characters to get started! :)
A cute turkey to begin with.
In this first tutorial, you can learn how to draw a fun turkey mostly made from small rectangles and large circular shapes. The posture of the character is really interesting. Not only is it easier to draw than a front version, but its also easier to add some perspective (as we can see with the legs). The fact that we just need to draw one wing is also interesting.
Most of these cartoon animals are not filled with complex textures or digital effects. In this case, the subject is filled with plain colors and only a few basic details (inside the tail) were added.
A nice turtle also from a side view.