TED Talks
Marilyn Waring: The unpaid work that GDP ignores -- and why it really counts
If you: do laundry, are (or have been) pregnant, tidy up, shop for your household or do similar labor, then by GDP standards, you're unproductive. In this visionary talk, economist Marilyn Waring seeks to correct the failures of this...
TED Talks
Geoff Mulgan: Post-crash, investing in a better world
As we reboot the world's economy, Geoff Mulgan poses a question: Instead of sending bailout money to doomed old industries, why not use stimulus funds to bootstrap some new, socially responsible companies -- and make the world a little...
TED-Ed
TED-Ed: How folding paper can get you to the moon - Adrian Paenza
Can folding a piece of paper 45 times get you to the moon? By seeing what happens when folding just one piece of paper, we see the unbelievable potential of exponential growth. This lesson will leave you wanting to grab a piece of paper...
Crash Course
Is Growth Right For You? Crash Course Entrepreneurship
In business, growth basically means making a company more successful in some way: finding a new revenue stream, revamping the cost structure to minimize expenses and increase profit, or adding new people and knowledge to the team. Our...
TED-Ed
TED-Ed: What makes muscles grow? - Jeffrey Siegel
We have over 600 muscles in our bodies that help bind us together, hold us up, and help us move. Your muscles also need your constant attention, because the way you treat them on a daily basis determines whether they will wither or grow....
SciShow
Why Our Sewers are Plagued by Fatbergs
Sure, throwing grease down the drain is not great for the plumbing in your home, but it can actually cause problems on a much bigger scale in the form of FOGs - also known as fatbergs. And yes, those are as gross as they sound.
Bozeman Science
Plant Structure
Paul Andersen explains the major plants structures. He starts with a brief discussion of monocot and dicot plants. He then describes the three main tissues in plants; dermal, ground and vascular. He also describes the plant cells...
SciShow
Why Do These Trees Refuse to Touch?
There are a few forests out there where the trees seem to be especially... polite. Can scientists explain why these species give each other space?
TED-Ed
TED-Ed: What cameras see that our eyes don't - Bill Shribman
Our eyes are practically magical, but they cannot see everything. For instance, the naked eye cannot see the moment where all four of a horse's legs are in the air or the gradual life cycle of plants -- but cameras can capture these...
SciShow
Does Shaving Make Your Hair Thicker?
You've probably heard someone explain that hair grows in thicker after shaving, but is there any truth to this or is it just a myth?
Bozeman Science
Populations
Paul Andersen explains how populations interact in an ecosystem. The symbiosis of several populations is based on effects that may be neutral, positive, or negative. Interactions like mutualism, commensalism and parasitism are included....
TED Talks
Nandan Nilekani: Ideas for India's future
Nandan Nilekani, the visionary co-founder of outsourcing pioneer Infosys, explains four brands of ideas that will determine whether India can continue its recent breakneck progress.
Crash Course
The Economics of Immigration: Crash Course Econ
Is Immigration good or bad? Immigration is a touchy subject in the United States. The 2016 election has been filled with debate about the subject, and both proponents and opponents have lots of reasons for their stance. But, this is a...
SciShow
Antlers: The Secret to Deer's Cancer-Fighting Superpowers
Antler cells divide really fast, and with their super-fast growth, antlers resemble tumors in some ways. But animals in the deer family are less likely to get cancer than many other organisms, and a recent genetics study may have...
SciShow
5 Ecosystems Thriving in the Least Likely Places
Around the world, living things have managed to build truly extraordinary ecosystems in some of the last places you would think to look. Understanding these ecosystems can help us protect or repair them, and it can also help us...
SciShow
Why Can't You Remember Being a Baby?
You're pretty sure being a baby was awesome, but why can't you actually remember any of it?
Bozeman Science
Land Use
In this video Paul Andersen explains how land is developed for human use. Urbanization has occurred through the last century as people have moved to cities in large numbers. Transportation and the arrival of the car have led to urban...
TED-Ed
TED-Ed: How do cancer cells behave differently from healthy ones? - George Zaidan
How do cancer cells grow? How does chemotherapy fight cancer (and cause negative side effects)? The answers lie in cell division. George Zaidan explains how rapid cell division is cancer's "strength" -- and also its weakness.
TED-Ed
TED-Ed: How can we solve the antibiotic resistance crisis?
Antibiotics: behind the scenes, they enable much of modern medicine. We use them to cure infectious diseases, and to safely facilitate everything from surgery to chemotherapy to organ transplants. But we’ve stopped discovering new ones...
Crash Course
Fungi: Death Becomes Them - CrashCourse Biology
Death is what fungi are all about. By feasting on the deceased remains of almost all organisms on the planet, converting the organic matter back into soil from which new life will spring, they perform perhaps the most vital function in...
SciShow
Why Body Hair?
In today's episode Hank talks about hair: What's it good for, what's it made of, and why do we have less than other mammals?
Crash Course
Great Glands - Your Endocrine System: CrashCourse Biology
Hank fills us in on the endocrine system - the system of glands which produce and secrete different types of hormones directly into the bloodstream to regulate the body's growth, metabolism, and sexual development & function.
Crash Course
Financing Options for Small Businesses: Crash Course Entrepreneurship
This episode is near the end of this series, but entrepreneurship isn’t a linear journey. You might need funding to accomplish any of the steps to build a business, not just when you’re ready to take a product or service to market. Some...
TED-Ed
TED-Ed: Urbanization and the future of cities - Vance Kite
About 10,000 years ago, hunter-gatherers, aided by rudimentary agriculture, moved to semi-permanent villages and never looked back. With further developments came food surpluses, leading to commerce, specialization and, many years later...