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I was asked by my 14 year old daughter why there are different blood groups? She knows the 4 main groupings A, B, AB & O and about rhesus positive and negative. What we do not know is where these...
The water supply in a house enters the property via a rising main on the ground floor. The water is distributed around the property via 15mm diameter copper pipe. On the first floor of the property, a...
This may be an old chestnut; I have certainly thought about it for years: If analogue clocks and watches, and all memory of them, disappeared, how would one define clockwise? Unlike north, south, east...
i'm having a mri scan, on my head and have made sure i havent got any metal on my top half, but my zip on my school tousers are metal, will i have to take them off?
Tupperware type food containers come up lovely in the dishwasher, but remain the only item still wet after the whole cycle. Glass, china, cutlery all as dry as a bone, but not the plastic. Why is...
Is there a calculation i can use to work out the cost of energy needed to heat a room to a comfortable room temperature for 8 hours /day please.Obviously it would depend on the number of cubic metres...
I am told that when spinning a coin there is always a 50/50 chance of a head or tail . So in 1000 spins there will be approx 500 of each. If there has been 500 spins and all are heads is the...
http://news.bbc.co.uk.../sci/tech/8485669.stm With the rapid progress in this field could we expect Nuclear Fusion to be reality within 20 years? How would this affect the oil industry? How would it...
As far as I'm aware the earth is constantly rotating, ok. Also as it rotates it is also going around the sun, ok. But is that were the movements end or is earth also moving through space as part of...
do these numbers correlate with expotential growth? remembering that that don't all go up in even intervals? concentration . . . ml/s 0.2...............0.05 cm /s 0.6............0.165 cm /s...