@StarTalk

See if you can get the equivalence principle experiment to work at home. What happens?

@Jager-er4vc

I love Chuck for his comedy and the fact that he is WAY smarter then he lets on.

@Hemzees

I love how science just makes these two happy. Chuck is especially brilliant but then most comedians actually are.

@jeffs6090

Thank you for finally mentioning The Expanse. It's such an amazing show that actually got a lot of the science correct. Obviously some things were embellished for drama and artistic reasons, but many things were spot on. Especially their ship designs in order to generate artificial gravity when the engines are on. Half way to their destination, the ship would flip so the rockets were then slowing them down while still generating gravity. Good on Chuck for mentioning that at the end!
They should definitely do an explainer about the show and all its science. First, though, Neil needs to watch all  the seasons!!
Beltalowda!

@martinntuwa

I love that The Expanse is recognized. It's the best space novellas I've ever seen and read.

@georgedeedsnotwords2162

I wish I could have gotten teachers like them back in school . The passion and fun , I might have even liked being there and learning .

@user-et1ht9fx2k

You guys always manage to put a smile on my face even when times are tough. And I learn something too. Thanks for that.👍

@PerfectChaos7

I'm glad they gave another shout out to The Expanse.  An amazing story, and even better for science lovers.  I've seen all 6 seasons in continuum 5 times now and also read all 9 books, and planning to re-read them soon.

@Momentsoflifeinreel

Watching this from the remote village of worn torn country Afghanistan. I watch your videos everyday Dr. Neil and learning from you. There is no school nearby so, I am learning from your videos 😀😀

@riftvideos1203

6:45ish I thought we used G as a term express equivalency to earth gravity for the difference in inertia in relation to two objects. ie in a fighter jet, you experience at 4g your 150lb body as if your 600lb, but you aren't being pulled toward the plane's mass. the plane is just adding to your inertia in a particular direction. if the plane had a gravitational effect on you then in a negative 4g maneuver the same person would have an outsized pull of the plane toward your mass. your body is not pulling that plane toward it, the plane is increasing the difference in inertia as the heavy plane radically alters your inertial vector dragging you along.

@michaelccopelandsr7120

Neil and Chuck for 2024

@TamTran-vw7zm

Thanks, guys, for letting me relive my college physics class (looong time ago). I love your shows, and the pure joy of learning you show, and then give to me!

@dylanroberts1752

I can't stop the video until I hear Neil say, "keep looking up". ❤😊

@byronwatkins2565

"g" is acceleration.  More specifically, "g" is acceleration due to explicit force(s).  A car in a sharp turn exerts an explicit force on the occupants.  A rocket after liftoff exerts an explicit force to lift astronauts into space.  Gravity is everywhere -- it is called "Netwon's universal law of gravitation" for good reason.  But, if other explicit forces are absent, then the resulting "free fall" (due to gravitational forces only) is perceived identically to an absence of forces.

However, the gravitational force has spherical symmetry.  Each mass creates spherical shells around itself wherein all other masses get accelerated toward that mass.  These spherical shells are different from a rocket engine's acceleration in one small respect:  these spherical shells result in "tidal forces" -- closer objects have higher acceleration and the acceleration vectors are not parallel.  In fact, these tidal forces (and small orbit corrections) are what NASA calls "microgravity."

"If you accelerate at 1 g for ten months" -- in whose frame of reference?  It is not possible for mass to reach the speed of light.  Viewed from earth, the ship would become more and more sluggish.  At first, only very precise measurements would note the decreased acceleration.  But above 0.9 c, the observed acceleration gets closer and closer to zero despite the occupants of the ship 'feeling' the same 1 g acceleration as from the beginning.  Contrarily, if you tried to accelerate the ship so that viewers on earth observed a constant 1 g acceleration, then the occupants of the ship would experience higher and higher "upward" force.  Eventually, this force would crush them and the ship.

@geronimomartinez1469

I can watch Neil and Chuck videos over and over … the most rewarding experience!! I wish we can have some politicians with 10% of these guys knowledge and common sense … we’ll be great again !🖖

@capeverdeanmedia

This is interesting science.💎 imagine if Steve uncle was on this show...😃wit chuck also.

@ridakos9476

Hey Neil and Chuck I just wanted to find a way to thank u guys for opening my mind agian I would love to look at stars and galaxy nebulas but I live in Wisconsin how would I go about doing it

@73mordka

Oh, what an amazing explanation on acceleration unit. With every second your speed increases by the value of acceleration. It's beautiful, because it's so simple ❤❤❤

@aslansm

The Expanse is so great because they represent stuff like acceleration, gravity and deceleration so realistically. Great references to the show. Thank you guys!

@thewinddb

Neil gets so amped up talking about physics. I enjoy that.