Things You Thought You Knew – Force, Heat, & Speed

StarTalk Radio

Star Talk, Nature, Scientist, Education, Astronomy, Astronomer, Physics, Earth Science, Neil Degrasse Tyson, Startalk, Cosmos, Science, Spacetime, Universe, Astrophysics, Astrophysicist, Quantum Physics, Space, Climate Science, Multiverse, Nasa

4.6 • 14.1K Ratings

🗓️ 18 November 2025

⏱️ 41 minutes

🔗️ Recording | iTunes | RSS

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Summary

Do you feel the need… the need for speed?! Neil deGrasse Tyson and Chuck Nice break down things you thought you knew about force vs. pressure, heat vs. temperature, and speed vs. acceleration.

Transcript

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0:00.0	Coming up on StarTalk, it's another Things You Thought You Knew episode.
0:05.0	This time, we dig into force versus pressure, heat versus temperature, and speed versus acceleration.
0:13.0	Check it out.
0:14.0	Welcome to StarTalk.
0:18.0	Your place in the universe where science and pop culture collide.
0:23.6	StarTalk begins right now.
0:27.6	I got more explaining to do.
0:30.6	You got some explaining to do.
0:32.6	Lucy.
0:34.6	So here it is.
0:35.6	Today I want to talk about force and pressure. Gotcha. Okay. So I'm not talking
0:42.2	about sort of emotional pressure. Okay. That's what I'm talking about. Right. Right.
0:47.3	You know, my job has got me under so much pressure. I'm talking about physics pressure and physics
0:54.0	force, all right? By the way, another way we use
0:58.2	those words in everyday life. We say, how much force are you showing on the battlefield? So that's
1:04.4	another cultural usage of those two terms. Each of those words has a precise definition in physics.
1:11.6	Not to mention space force.
1:13.6	Yes, that's in there too. Okay?
1:17.6	They don't call it space pressure, no. There's a space force.
1:20.6	So a force is what you think it is, right?
1:24.6	You push on something and you create a force that might set it into
1:29.7	motion. Okay? And if it's something that doesn't move, but it's still fragile, you put enough force
	...

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