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May
14
comment Is there anything physically infinite?
@user12345 indeed, their community is terrible.
May
14
revised Is there anything physically infinite?
deleted 57 characters in body
May
13
awarded  Civic Duty
May
13
revised Is there anything physically infinite?
edited tags
May
13
answered Is there anything physically infinite?
Apr
21
comment Is there any true inertial reference frame in the universe?
@FrankH on Earth's surface astronomer will detect gravity force. This is if we consider Newton's mechanics.
Apr
19
comment Is there any true inertial reference frame in the universe?
Gravity does not make Earth non-inertial in Newton physics. It is just a force like any other forces. -1
Apr
2
awarded  Good Answer
Mar
22
comment Best shape to reduce the splash of a droplet?
Notisce also that even if the drop still has high speed at the rightest part of the path on figure 4, so there will be a burst, the splashes have virtually no chance to escape: nearly all the straight lines drawn from the vertex of the curve end on the border. Given the parabolic character of the splashes trajectory, their chance to escape is even smaller.
Mar
22
comment Best shape to reduce the splash of a droplet?
@Crazy Buddy It has several disadvantages: the place of the first hit is higher (and as such the possibility the splashes from the first hit go over the border is higher), also the slope in the place of the first hit has greater angle with the speed vector so the burst in the first hit will be greater, also the overall slope is shorter and it is steeper so there is possibility the drop will not slow enough till the lowest point where the angle of attack again rises abruptly so giving possibility of another burst.
Mar
22
comment Best shape to reduce the splash of a droplet?
there is no need for complex calculations so to see that to keep the drop intact, in any moment there should be no force acting on the drop exceeding its surface tension.
Mar
22
comment Best shape to reduce the splash of a droplet?
It is not just "obvious", it is substantiated by the fact that the kinetic energy of the drop completely converts goest to tear the drop apart in case of the right angle impact. If you disagree, please rise your objections. Or did you read only the first word?
Mar
22
revised Best shape to reduce the splash of a droplet?
added 528 characters in body
Mar
22
answered Best shape to reduce the splash of a droplet?
Mar
22
comment Best shape to reduce the splash of a droplet?
I vote for the 4th
Mar
20
comment Surviving Free Fall with the Help of Mr. Bernoulli
Only if you had wings.
Mar
19
revised Are the laws of physics objective or subjective?
edited tags
Mar
19
comment Are the laws of physics objective or subjective?
@Qmechanic epistemology tag is not new. And as I already said, this helps searching the question. This question is philosophy or not not depending on the tags.
Mar
19
comment Are the laws of physics objective or subjective?
@Qmechanic lol these things are explicitly mentioned in the question.
Mar
19
answered Are the laws of physics objective or subjective?