View full lesson: http://ed.ted.com/lessons/how-do-glasses-help-us-see-andrew-bastawrous-and-clare-gilbert Today, glasses help millions of people with poor vision be able to see clearly. But how? Andrew Bastawrous and Clare Gilbert help unravel the answer by explaining refraction — the ability of a transparent medium, like glass, water, or the eye, to change the direction of light passing through it. Lesson […]
Tag Archives: TED-Ed
Discover how scientists are using crowdsourced DNA to find the causes of untreatable diseases, and developing new drug treatments for them. — When scientists don’t know the cause of a medical condition, developing a drug treatment takes significant trial and error, and lots of money— which is why we only have drugs for a small […]
Explore the technique known as the Socratic Method, which uses questions to examine a person’s values, principles, and beliefs. — Socrates, one of the founding fathers of Western philosophical thought, was on trial. Many believed he was an enemy of the state, accusing the philosopher of corrupting the youth and refusing to recognize their gods. […]
Explore the paradox of welfare programs, and learn how they inadvertently reinforce generational poverty, and what we can do to fix them. — Imagine that you’ve been unemployed for months. Government benefit programs have helped you cover your expenses, but you’re barely getting by. Finally, you receive a paycheck— but there’s a catch. Your new […]