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Science
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A surveyor uses a tape, graduated in cm, to measure a rectangular plot of land. He records the length as 5.34 m and the breadth as 7.19 m. What would be the "best" value which could be given for the...
I understand that vitamin B12 is essential for the body's production of healthy blood cells. The human body does not produce its own B12 and has to rely on meat, eggs and dairy produce. Vegetarians...
A mutation that deletes one or two DNA nucleotides changes gene function more drastically than a substitution of one nucleotide for another. Why?
ABC. One of them got Special Gas in it, inert. Others have Flammable sensitive gas in, detected by placing candle under balloons. I test them out in binary fashion: AB, etc. I test AB to find which it...
What explosive potential does the average human being have? I'm thinking along the lines of the exploding man in Heroes...
If you are heating the end of a steel rod in a brazier, you can hold your end without protection until you plunge the hot end in water, then for some strange reason your end gets too hot to hold, why?
will it be possible to make things invisible? Can you see what I'm getting at?
I would like to know why are centuries counted oddly. What I mean is why were the 1900's known as the 20th century and so on. It is rather confusing when trying to work out what is say the 16th...
im sure this question has been asked before, but why is nature so symmetrical, and spherical? even down to the cells, atoms, dna and so forth... flowers, faces, eyes, hands, the list is endless! why...
I was told that if you walk 52,000 miles than you have walked the world once , is this true?
If two twins were given a watch with excactally the same time on them, and one was to travel around the world and one stay were she was. Would the Twin who travelled have a different time on her watch...
does anyone know the collective term for a group of butterflies?
When you pour a pint of lime cordial and soda water (cordial in first) it needs stirring to mix the drink properly otherwise all the cordial stays at the bottom of the glass. When you use normal water...
If a 1-m cubed sample of air at sea-level pressure, containing 4 g of water vapor, is cooled and condensation occurs, how many calories of heat are released?
Does an objects mass determine the effect that gravity has on it or is it the same for everything from a feather to a planet?
more of a maths question, but i was wondering, how would the world change if someone had verifed a way to divide by zero. what would this mean? how would things in the world change? would it change?...
Which has the greater influence on gravity---Mass or density......A massive sun or a tiny neutron star?
I have noticed that when i insert a pair of ear plugs with an SNR of 30 and wear a pair of headphones over these which have a continous noise of 90dB the combined effect of the ear plugs and...
My daughter has been off school with severe ear problems and we have been getting her homework to do at home. However, we've had problems finding a site to explain these melting ice facts in...
Hi, At it`s largest , viewed from any point in the world,with the naked eye. Could venus ever be mistaken for the moon, in an condition (day or night)
