TED-Ed: The fundamentals of space-time: Part 2 - Andrew Pontzen and Tom Whyntie

The video tutorial explores the concept of measuring light's speed using space-time diagrams. It discusses how different perspectives affect the perception of light's speed and introduces Einstein's solution to maintain consistency through Lorentz transformations. The tutorial explains the effects of Lorentz contraction and time dilation, confirmed by experiments like those at the Large Hadron Collider. It concludes by hinting at future explorations of space-time.

What is the constant speed of light that everyone measures?

• 1,000,000,000 meters per second

• 299,792,458 meters per second

• 150,000,000 meters per second

• 500,000,000 meters per second

What is the purpose of a Lorentz transformation?

• To change the speed of light

• To create a new type of animation

• To measure the speed of sound

• To adjust space-time to maintain the constant speed of light

What happens to objects in motion according to Lorentz contraction?

• They appear larger

• They appear to move faster

• They appear thinner

• They appear unchanged

What is the effect called when time gets muddled with space?

• Time contraction

• Space dilation

• Time dilation

• Space contraction

At what speeds are the effects of Lorentz contraction and time dilation most noticeable?

• Everyday speeds

• High speeds, such as those in particle accelerators

• Walking speeds

• Sound speeds