just watching a history programme and they state that the bomb weighed 4 tons. I know uranium is the heaviest element but how much would the uranium in this bomb weigh? Surely not 4 tons and if not...
I've got two small unlabelled amber reagent bottles containing concentrated (pure) acids. I know one bottle contains hydrochloric acid and the other contains sulphuric acid. Is there a simple test...
Has heavy water any relationship in a hydro electricity plant and could the water in this instance be used time and time again.Also can this water i.e heavy be converted cheaply to fresh water. ?
Given that all matter is really energy condensed to a slow vibration, is there really such a thing as death or is it merely just a transition to another plane?
Why is it that if you drop magnesiuk ribbon inot acid, the greater the length of acid, the greater the energy released? i mean, i know its cos there is more magnesium but is there some big scientific...
does anyone know where i can find information about black holes, perhaps with some inofrmation about the experiences of travelling into one, passing over the event horizon etc. and equations involved...
This is following on from a question about radiation but, if you where to let yourself come to radiation everyday, eventually it would give you cancer. But lets say you stood in a room full of...
If you have a steel washer and you heat it to cherry red does the hole in the middle get smaller because the metal has expanded, or does the hole get bigger because the metal has expanded?
Are people today unable to use the internet to research a question of a topic of interest? Why do people post really dumb questions when they could just put key words into google and get the answer? I...
For some reason the moniter just keeps going blank for no apparent reason. If I turn the machine off and back on it comes back again but then after about maybe 20 seconds it just goes black and the...