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Science
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Is there a maximum number of xrays that is recomended , over a period of time - and if so what is the number and over what period of time What are the dangers to your body of exceeding this limit
How can I measure the miscibility of two liquids? I am a student and don't have much access to high-tech equipment. Thanks!
Why is that? are helium Molecules smaller than air or of a higher pressure than air? Also posted on seasonal wonder which brain boxes get this first.
Can you assume that every mountain located along the edge of a continent is a volcano? Why or Why not?
what would happen if you submurged a rubber container full of hydrolic oil ,with a tube reaching the surface to the bottomof the ocean? Would it force the fluid through the tube to the surface at a...
Can anyone help with the following question? What is the Creationists opinion on why fossils exists? Thank you
hi! I have the following problem. I need to pass an advanced numeracy test and I was wondering if there is any intelligent way of solving this problem. You have only 20 seconds, you cannot use a...
does washing up liquid freeze?
i am considering buying a tv and am asking you experienced abers which is best based on your knowledge,ie plasma or lcd. i have done a google but its a mine field thus my q. help really appreciated...
Patients in hospital beds are rotated every 2 hours to prevent bedsores. Exactly why is this effective?
How does an atom hold on to its electrical charge,does it weaken over time ? If it loses it, is that what is meant by decay. What does an atom become if it has no electrical charge?
With all the gagets around now using memory (ram etc) what was the size of the memory taken on the Apollo flights to the moon?
q.67. What 9 letter portmanteau word formed on the model of stars with such names as pulsar and quasar is an alternative name for a black hole' Thanks
I read recently that there is a perfect kilo weight which is losing weight and so no longer is a perfect kilo weight. This made me think is anything else in the world able to be described as perfect....
Most lava that forms on the earth's surface goes unnoticed and unobserved. Why does this happen?
If we somehow survive extinction we are on the road to immortality.with the rapid advances in computers, nano technology,robotics,medicine etc.I believe we will become more machine than flesh and...
The other day I heard a mnemonic for remembering the correct sequence for the classification of living things (Phylum, Family etc), but I can't remember it! Anybody know a good one for this. Thanks,...
Can someone please explain in SIMPLE LAYMAN TERMS what Torque and BHP are in respect to an engine Thanks
At school we learned ' I wished to go TOA dance SOH I took a CAH' as a mnemonic for the sine, cosine, and tan ratios.Did anyone use any other mnemonic for these ratios? What mnemonics would you have...
we see people at beach using silver foil to lie on to attract sun rays.....does a mirror or silver foil attract the sun more....do uv rays bounce back of the foil material and come back to tan/burn...
