1,528 reputation
216
bio website root42.blogspot.com
location Earth
age 35
visits member for 1 year, 1 month
seen yesterday

Coder, software architect, interest in computer science in general. Did research on computer graphics, ray tracing, radio wave and antenna simulation. Like to learn new programming languages. Currently doing Python and Emacs Lisp for fun. C++ for profit. Would like to learn more Clojure.


Nov
19
comment How are the newly discovered Janus/Epimetheus rings different from the other rings of Saturn?
What's the structure like?
Nov
19
accepted How does a Bahtinov mask work?
Nov
19
comment How does a Bahtinov mask work?
If you could add a bit from the linked articles, I would accept your answer: "Always quote the most relevant part of an important link, in case the target site is unreachable or goes permanently offline."
Nov
18
asked How does a Bahtinov mask work?
Nov
18
comment How can we be sure that we have identified very distant stars correctly?
Interesting. So basically we are mostly stuck with parallax measurements in our own galaxy?
Nov
17
comment How can we be sure that we have identified very distant stars correctly?
I would say that the redshift in the spectrum plays a big role. The absorption lines are kind of like a fingerprint for the elements in the star. If those are shifted, we can calculate the redshift, and hence the distance.
Nov
17
awarded  Benefactor
Nov
16
awarded  Scholar
Nov
16
accepted Can the supernova remnant SN 1572 be observed by amateur astronomers?
Nov
15
awarded  Promoter
Nov
15
revised What's the largest non-spherical astronomical object in the universe?
Add SDSS image of IC1101
Nov
15
suggested suggested edit on What's the largest non-spherical astronomical object in the universe?
Nov
15
answered What's the largest non-spherical astronomical object in the universe?
Nov
14
revised How are the newly discovered Janus/Epimetheus rings different from the other rings of Saturn?
Add link and picture to the ring in question
Nov
14
suggested suggested edit on How are the newly discovered Janus/Epimetheus rings different from the other rings of Saturn?
Nov
7
awarded  Student
Nov
7
asked Can the supernova remnant SN 1572 be observed by amateur astronomers?
Nov
5
revised Is there a natural process by which hydrogen is generated from heavier elements in the cosmos?
New insight on matter creation
Nov
1
comment Is there a natural process by which hydrogen is generated from heavier elements in the cosmos?
Motion is relative. Maybe there'll be other protons / hydrogen atoms moving in the same direction with the same speed... I think the entropy argument from the other answer is best. The universe is just simply going to shreds -- very slowly...
Oct
30
comment Is there a natural process by which hydrogen is generated from heavier elements in the cosmos?
Wikipedia says about protons in nuclear decay: »Shortly after the discovery of the neutron in 1932, Enrico Fermi realized that certain rare beta-decay reactions immediately yield neutrons as a decay particle (neutron emission). Isolated proton emission was eventually observed in some elements.«