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Science
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Please does anyone know the risks associated with Laser marking/engraving machines? What are the safety regulations for them? I believe this is a Class 4 laser as it has the warning sticker about...
If two people are sunbathing one on earth on on the moon which one will always get sunburt first? and why?
which factors affect a reversible reaction, such as a haber process?
what can you put in a can and make the can weigh less
Posted this question once before but answer was inconclusive. It still provokes fierce arguments amongst my friends.The question is........Does the outer end of a second hand on a clock move faster...
what can you put in a can and make the can weigh less
On a standard calulator keypad, if you take any block of 4 keys and key then in, either clockwise or anticlockwise, starting with any key, the answer is always divisible by 11. E.g. 4785 or 2563. This...
Does Feng Shui have any basis in science at all? Or is it mere arty farty voodoo nonsense?
which factor affect a reversible reaction, such as the haber process
My Chemistry teacher frequently calls biology applied chemistry, and physics applied maths, and he always says chemistry is the most important science. Recently a Physics teacher (not mine he teaches...
which foot did neil armstrong put on to the moon first
a quantity q is calculated by the formula q = ab-c . a is known with uncertainty +/-x%, b has uncertainty +/-y% and c has uncertainty +/-z%. ab = 2c what is the uncertainty of q?
does the rays of the sun bounce back off a mirror of foil type material to brown or tan the skin? ive heard of people on hols do this wen sunbathing...please give loadsa info...thanks
which factors affect a reversible reaction, such as the haber process?
ok- we all sleep, we know it rests our body or it rests our minds or it does something....... but in scientific or medical terms what actually is happenig within our bodies- what actions are taking...
which factors affect reversible reactions, such as the haber process?
What would be the volume taken by a tonne of feathers?
In which effects of light and the illusion of movement i sused rather than pictures? two words. 20d in mail on sunday 25.nov.
what, roughly is the weight at take off of an average airbus, with say 200 passengers and luggage.?
How can I solve (x-2)(x^2+3x+1)=0 From the question: a) Show that (x-2) is a factor of f(x)=x^3 + x^2 -5x -2. b) Hence find the exact solutions of the equation f(x) = 0 I've managed to get to the last...