Recent content by Lobezno

I´ve always held the best way to understand laws in physics is to try and break them. Then you´ll see they work!

They are indeed! Very special things. No wonder Feynman devoted so much time to studying them!

Superfluid really are fantastic; I was convinced for ages they were science fiction!

Ahhh that's no fun. I thought there'd be some hardcore maths involved!

Mind posting your workings out? How did you arrive at this answer?

For the purposes of floating things, liquid and superfluid helium would be practically the same; a difference because the superfluid is colder and denser, but that's about it. And let's not forget it still has surface tension!

You can have a go testing the equations out, to get a feel for them. In absence of that, you can look up YouTub videos of others doing the demos for you......but are you really going to pass up the opportunity of building a giant catapult to test projectile motion equations?

The arms of the balance move up and down, leaving the only position for equilibrium as exactly straight, for equal mass arms.

Well yeah, basically it's transparency. Not exactly, and Integral's definition is better, but essentially. So your third doubt should disappear.

Well the sin 90 degrees, or perpendicularity, is 1. So...multiplying any number by zero will give the same number, ergo no refraction.

For starters, you can raise the boiling point much higher than that. I believe the boiling point for brine, or salty water, is 117 degrees Celsius. Despite that, yes, that is my understanding of it. On the molecular level, the impurities can "absorb heat" and thus increase the average kinetic...

That's the layman's term he used... When an atom is over excited, it will attempt to jump down to a lower energy state (think Uranium decaying by gamma radiation).

The concept of both bodies "falling towards each other" is not intuitive at all, when was the last time the Earth came up to greet the ball instead of the ball falling to the ground? But that's only because the Earth is far more massive.

They should really give the real, "reactive" centrifugal force a new name so as to avoid confusion. The second definition of centrifugal force, the force on the body that exerts the centripetal force IS REAL and is required by Newton's Third Law. It's most unfortunate that is has the same name...

Magnets use a magnetic field. Charged bodies use electric field.