meta user
network profile
| bio | website | |
|---|---|---|
| location | ||
| age | 50 | |
| visits | member for | 2 years, 2 months |
| seen | May 7 at 21:41 | |
| stats | profile views | 60 |
|
May 7 |
awarded | Enlightened |
|
May 7 |
awarded | Nice Answer |
|
Mar 23 |
awarded | Yearling |
|
Dec 9 |
comment |
CGS Units to SI Units I am not certain, but I think you need an extra term in the numerator of the CGS calculation |
|
Dec 9 |
answered | CGS Units to SI Units |
|
Dec 9 |
comment |
CGS Units to SI Units Why not show your two sets of calculations? |
|
Dec 2 |
comment |
Which direction will the yoyo move? Thinking about the torque about the centre of the yo-yo, I am afraid I still cannot see that it can roll to the right, i.e. clockwise. |
|
Dec 2 |
comment |
Which direction will the yoyo move? I don't see why the yo-yo must roll to the right. I would have expected it could slip to the right while rolling to the left, with the net effect on the centre of the yo-yo still unclear. |
|
Nov 26 |
awarded | Caucus |
|
Nov 6 |
comment |
Planck mass is about the mass of one eyebrow hair If you look at small bacteria such as Pelagibacter ubique then you are many orders of magnitude smaller than a Planck mass. Most viruses are even smaller, with the Rous sarcoma virus being particularly small. So the minimum size is more about having enough biological information to be reproduced than anything to do with physical constants. |
|
Nov 6 |
answered | Planck mass is about the mass of one eyebrow hair |
|
Oct 24 |
comment |
Weightlessness by a parabolic flight It is not any parabolic flight, but a particular parabola (or to be more precise, an ellipse close to a particular parabola) |
|
Oct 23 |
comment |
Black out the sun? It depends how close they are to the sun and on how large each is (in a non-overlapping sense) |
|
Oct 21 |
answered | Same momentum, different mass |
|
Oct 15 |
answered | How far does typical view of clouds/atmosphere extend? |
|
Oct 11 |
comment |
What causes the vacuum in my bento box? Because it reduces the amount of gas inside the box, so further reducing the pressure |
|
Oct 11 |
answered | What causes the vacuum in my bento box? |
|
Sep 21 |
comment |
How to correctly solve density tolerance How big is the pipet? |
|
Sep 10 |
comment |
When and how were relative distances to the planets first measured? Ron: Brahe believed that the Earth could not move at all as it was too heavy. I suspect it is more likely that seeing Kepler's calculations he would have thought the Sun moved around the Earth in a daily circle and annual ellipse and the other planets around the sun in ellipses. |
|
Sep 9 |
comment |
When and how were relative distances to the planets first measured? You cannot praise Tycho Brahe and then condemn all geocentrist astronomers as dimwitted, as he was one of them and did not even believe in the Earth's daily rotation. |
