Recent content by Beasticly

But doesn't the sun emit white light that is made up of light of every wavelength? Is it just that UV occupies a greater proportion of wavelengths than any other sort of light?

So does the sun not emit xrays and gamma rays or something? If not, why are plastic manufactuers so worried about UV degration if there's xrays and gamma rays that will do more damage?

That makes a lot more sense now, but looking at a light spectrum I notice there's also xrays and gamma rays that have a higher energy again? Is it just that they are classed as UV too because they're higher than violet light? Thanks! Is it possible to find the energy of a bond? I'd like...

Hey guys, just trying to get my head around this one.. Why do UV rays effect polymer chains so much? I understand that they weaken the bonds within the chains to create free radicals which then go on to react with other things which eventually makes the whole chain degrade as a whole, but...

Doh, I probably should've realized this was more a chemistry orientated question. Thanks for moving it Integral! Ah, ok, so for the anode to be reduced the cathode has to be oxidised. Cool. :) So that'd mean that there'd only be a transfer of electrons from within the battery and that the...

Hey Integral, I don't mean to barge in, but you seem to be quite knowledgeable with batteries and the like so would you mind quickly poking over to my thread (https://www.physicsforums.com/showthread.php?t=246208) and telling me if I'm on the right track as far as batteries are concerned...

I understand that a battery works as a series of electrolytic cells when discharging, so would it be true than when it recharges, and undoes the electrolytic reactions, it acts as electrolysis reaction so that the anode can be replenished? Thanks in advance, would love some clarity on the issue.

As someone in their last year of high school (Australia) that has to consider Uni choices in a couple of months, this thread is of increadible interest. While I have a broad facination in all the science subjects I do (chemistry, maths and physics) I would have to say that I enjoy Physics...

Homework Statement Work out the length of a guitar string, and where the frets will be placed from nut to bridge given the starting frequency. Frequency = 82.4Hz (E) Homework Equations 12√2 between each fret v = fλ v = √(T/u) u = m/L L = (1/2)*λ The Attempt at a...