Recent content by Neptune2235

Thank you all for your insights! I've just started reading about the possible shapes of the universe and find it all quite fascinating.

This is probably a silly question, but it's summertime and I can't ask my professor. If the universe turned out to be closed (even in light of WMAP's findings), would it be possible to consider the entire universe a closed system?

[FONT=Arial]I have an Omano OM118-M4 compound microscope that goes for around $160 I believe. I'm really pleased with it so far. It has four objective lenses, 40x, 100x, 400x, 1,000x, and allows you to see cell structure. Of course, it's not the most powerful microscope out there but its...

5g of AuBr3 (Ksp = 4.0 x 10^-36) are placed in 25 ml of water, how many grams of Au ions are dissolved in the 25 ml? My instructor used the conversion factor (6.2 x 10^-10 mol Au ions) to get from 25 ml H2O to grams Au. I believe the conversion from ml of H2O to grams of Au is: 25ml H2O x...

Hi, Recently, I made a batch of smoke bombs using potassium nitrate, sugar, and baking soda (to regulate reaction speed). My first batch took about four days to dry which seemed odd, however, they produced a fair amount of smoke. For my second batch, I decided to put the potassium nitrate I...