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Joce NoToPutinsWarInUkraine
  • Member for 8 years, 2 months
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88 votes

Why does a system try to minimize its total energy?

25 votes

Why do most formulas in physics have integer and rational exponents?

15 votes

Why does a ball bounce lower?

12 votes
Accepted

Wavy stream of liquid

11 votes
Accepted

Time reversal symmetry in the presence of friction

7 votes

Home experiment question

7 votes

Intuitive explanation of Poiseuille's law -- why $r^4$?

6 votes

Viscous Burgers equation physical meaning

5 votes

What is the body force in the Navier Stokes Equations?

5 votes

Why is turbulence caused?

5 votes

Why can't I scotchtape ice?

4 votes
Accepted

Rattleback - Breaking the Laws of Physics? (Walter Lewin rotation experiment)

4 votes

How does weight add up to press on things?

4 votes

Why can't a piece of paper (of non-zero thickness) be folded more than $N$ times?

3 votes

Vorticity - Paradox

3 votes
Accepted

How is a vacuum formed and measured by this pneumatics attachment?

3 votes

How do I calculate the Reynolds number in multiphase flows?

3 votes

Coffee Straw Physics

3 votes

woven appearance of water-streams by the side of the street

3 votes
Accepted

Keep an object at a certain hight, does it require energy?

3 votes

Can one pump water without providing an external source of energy?

3 votes
Accepted

If I bury a cylinder (top end sealed) in sand, how much force do I need to pull it out?

3 votes

Why are stresses of continuum systems described via a tensor?

3 votes
Accepted

What is the effect of surface tension on an air bubble inside water?

3 votes

What is the direction of buoyancy in the bulk of liquid on earth?

3 votes

Does surface tension attenuate turbulence?

2 votes
Accepted

How do simple bird waterers work?

2 votes

Will the ball come out of the well or not?

2 votes
Accepted

What amount of force could be created by a person "swimming" in air?

2 votes

When you push a stick will the end of it respond later than the beginning? Is so what is the fastest material and what forces are involved?