86 reputation
2
bio website ejetzer.blogspot.com
location Montreal, Canada
age 21
visits member for 2 years, 9 months
seen Sep 17 at 16:26

Sep
17
comment Thermometer reading
Mercury is about as compressible as water, or any Newtonian fluid: not enough to see a difference near room temperature and pressure. Mercury is also opaque, so we cannot see the meniscus' shape. If the center of the meniscus is lowered by an increase in pressure, what we'll see is a raise in the visible mercury level.
Sep
16
comment Thermometer reading
I don't think mercury is compressible, and therefore, that the expansion of air has any effect. The pressure of air will increase, but that shouldn't affect the mercury.
Dec
8
comment Is there a way for an astronaut to rotate?
Chris Hadfield made a video about this, where he makes a complete turn without touching anything, by twisting his body.
Oct
24
comment Why isn't absolute $0 K$ temperature possible?
I think you mean the ultraviolet catastrophy. :P
Sep
5
comment Why does blowing on a candle put it out but sucking doesn't?
I read in a bio of Richard Feynman, about a fun question, that has a similar answer: what happens if you invert the flow in one of those rotating water sprayers? In what direction does it turn?
Apr
4
awarded  Supporter
Feb
18
comment What causes ballpoint pens to write intermittently?
I suggest asking on Quora.
Feb
16
comment What causes ballpoint pens to write intermittently?
I'm claiming it's a bug due to an earlier bu fix. As in, it's better to hav a pen that stops writing some of the time than a pen that leaks all of the time.
Feb
15
awarded  Teacher
Feb
15
answered What causes ballpoint pens to write intermittently?