Recent content by termina

Thanks for your replies!:biggrin:

Hi everyone! Nowadays, our Universe has a 47 Billions light-year long radius, but the tricky thing is that its expansion rate is increasing, so could you tell me how its radius was a couple of thousand years ago? Thanks and happy new year!

Thank you for your answers! AlephZero, what you state implies that if something somehow managed to shift Earth's axis of inertia (by a sudden bad mass distribution), our planet rotation-axis would ajust itself to make the Earth spin around its new axis of inertia?

Hello there! Car wheels need some little sticky wieghts to ajust their moment of inertia in such way its rotation gets balanced. As for the Earth since it's not uniform in mass, could the presence of mountains play the same role as wheel weight in ajusting Earth's rotation axis with its...

Hello there!Layers of our atmosphere are said to be counted according to their temperature, then why don't scientists include the places where temperature is stable with altitude (as shown in the picture) as distinct and additionnal atmospheric layers?Thank you

Hello there! Do you have any idea on how one could calculate Moon total Kinetic Energy from heliocentric frame (ie, KE around the Earth with KE around the Sun)? is this sum of KE algebrical or vectorial? And how much is Moon's velocity around the Sun? Thank you

"Electromagnetic" brain? Hello there! It's a fact that our brain emits an (weak) electromagnetic field. But do you know its precise intensity and its frequency (in Hertz)?

Hello there! When a motor is turning, if one applies a resisting torque on the rotor, the latter would brake, but then if one remove the torque, the motor recovers its initial speed. Is the same with Earth's spin and Moon's resisting torque on it (due to tidal effect)? ie: if, one day...

You're far from the truth! as far I'm concerned, I've never stated on youtube that such far-fetched equation like Vmoon*cosine 26 was right. I'm not wormhole199.

that's not me!:smile:

Thanks! I suspected their initial claim were pseudoscientific "gymnastics", but i wasn't certain enough since i don't know celestial mechanics like the back of my hand. now, I'm certain!The website where i get those doubtful claims even asserts it's Einstein who said one must make...

Thank you for you answers! TheRationaliz, I've never thought Sun would affect Moon movement in such extend, rather after hearing such claims I'm here to check whether they are right or not. tony873004, nice graphs! can you tell me where you found them?

Hey, Janus! A website states that if Sun's gravitationnal effect were "put off", Moon's orbit around the Earth would be almost a perfect circle (whereas with the Sun it's an ellipse). In that condition, would the mean moon's speed become equal to V= 3680*(1-2e) where "e" is the actual...

Hello there! We know that in geocentric reference, Moon's trajectory is roughly a circle and moves at a mean speed of 3680km/hour. But, from a heliocentric frame of reference, Moon's trajectory in 1 sideral period isn't a circle but a curvature...

Hello! Is it true that virtual particules pop into existence uncaused? thank you