Recent content by hairnet

Cheers ftj, that is killer advice! Its on tuesday so i better get thinking over the weekend!

Hey guys, I have my first PhD interview (Astronomical Instrumentation) next week and was wondering what to expect. Its part of an open day but I have a specific invite and they mention a formal interview... Should I revise some physics equations or is it more like a job interview where...

Biot-Savart is your equation of choice here, try find the field as a function of radius and work on the answer from there...

Remember, the bigger the scope the less use it will get! Sounds barmy but unless you have the opportunity to leave it somewhere permanent the hassle of setting up etc is non-negligible! And don't neglect the mount, a stable weighty base is as at least as important as optical quality of the...

I think you might have confused 'inflation' with 'expanding'. The universe is expanding and other galaxies are indeed moving away from us but 'inflation' refers specifically to a very short period near the start of the universe when this expansion was very quick. It is still speculation...

depending on the limits of main sequence can't that be taken from a HR diagram? L vs Teff will put you somewhere on the plane...

Its believed that our sun is of the third generation of stars... There is only observational evidence for the youngest two as the original population would have been very massive and therefore had a very short lifetime ~10^6 years. This short lifetime would mean we can't see far enough to...

Stellar physics is chock full of maths...GR obviously is more maths than anything else (almost!)... its a bit hard to suggest specific ideas with the possible field quite so large! Do you have any more specific ideas, stars, galaxies, spectroscopy, orbital mechanics, cosmology, CMB power...