3,269 reputation
114
bio website
location
age
visits member for 1 year
seen Dec 11 at 10:16

Dec
16
comment Doesn't gravity attract objects in space until they collide?
Quite a good (and simple) answer now :) Voting up.
Dec
16
comment Doesn't gravity attract objects in space until they collide?
This is plain wrong: there is no such thing as a momentum force. Voting down.
Dec
15
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
No. Heavier objects like hammer do not fall faster than lighter objects like feather due to their masses. It is ENTIRELY dependant upon the aerodynamics.
Dec
15
awarded  Citizen Patrol
Dec
15
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
It is FALSE that heavier objects fall faster than lighter ones. They have increased gravitational pull but also increased inertia, and the outcome is that they fell (without resistence) at EXACTLY the SAME speed. Flagging for deletion.
Dec
14
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
A sheet and a ball made from the same sheet does not differ in mass at all.
Dec
14
answered Is sundial time entirely dependent on solar azimuth?
Dec
14
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
Mass is not important. Air resistance is. A paper sheet and the same sheet made a paper ball have the same mass and fall with different speeds on air.
Dec
14
comment If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
No, as they are ejected as a result of solar radiation (solar wind)
Dec
14
answered What are some night sky objects I could see with my Celestron UpClose 20x50 Porro Binocular?
Dec
14
answered If the hammer and feather move at the same speed why do comet and the tail particles move at different speeds?
Dec
13
answered How to calculate Longitude from Right Ascension?
Dec
12
answered Is there an orbit that could cause regular debris showers like in the movie Gravity?
Dec
12
comment Why are galaxies disk shaped?
Please note that even if stars and galaxies are not solid there is a enormeusly big difference: the star is a compact body of plasma, with pressure, while the galaxy is a big void of very sparse atoms with some clouds and very small stars, so it is nothing like compact.
Dec
12
comment Was comet ISON in a Kepler orbit prior to disintegrating?
The orbit of the body is, indeed, affected by the loss of mass. You are comparing two bodies of different mass, not a body which is losing mass. When a body loses mass, the orbit is still valid for the center of mass of the disgregated body, which does not necessarily coincide with the "main" remaining body.
Dec
12
answered Is the Jupiter-Sun system considered a binary system of some type?
Dec
12
comment Where does the radiation in space come from and can we observe it?
Could you make a mention to Gamma Ray Bursts? If they happen near enough they can be dangerous too.
Dec
12
awarded  Custodian
Dec
12
reviewed Edit Why do the planets in the Solar system stay in the same orbital plane?
Dec
12
revised Why do the planets in the Solar system stay in the same orbital plane?
added emphasis