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Science
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why is it harder to turn a bicycle when your hands are close together on the handlebars than when they are farther apart?
a physical property of gold
a physical property of gold
When low on battery, it is placed in a charger/holder and the red light comes on to show it is being charged. How is it charged without any wires or even physical contact needed from the toothbrush to...
Hello, these questions are interrelated. Thanks Q1 I read that absorption of a photon will occur only when the quantum energy of the photon precisely matches the energy gap between the initial and...
what is the melting point of water in fahrenheight?
i once read in a south african gold promotional magazine that all the gold produced in the history of the world would fit in the space occupied by three double decker buses. this was about twenty...
On DOND the independant adjudicator puts the money in the boxes at random. Then the contestants pick the boxes at random. I have a theory that if you select the numbers at random when playing the game...
When acidified potassium dichromate is used in organic chemistry to oxidise alcohols, nearly all the text books state the colour change is 'from organge to green'. But when I do the experiments in the...
drug companies keeping wonder drugs such as cures for Cancer and AIDs etc etc to themselves ? And shouldn't they have on the spot inspections to make sure they aren't keeping any lifesaving cures from...
In major accidents like a plane crash some victims have been found naked- are the clothes burnt off or actually physically torn off during the violent impact?what if someone has lots of layers or...
As the Earth spins at over 1000mph at the equator could this ever be used to generate electricity?
strange question, i know. but say i went all round the world with a piece of endless string and then got enough people to do a tug of war from where I started. then, someone went exactly half way and...
I have an indoor riding school measuring 20mts x 40mts, I need a new surface that is delivered by the ton - if I want a depth of 12cm +/- , please could some genius work out how much I need to order,...
i live in the midlands and at the moment at around 19.30pm at night there is a very bright star in the west fairly low down can someone tell me what it is please. thanx in anticipation.
hey, i really need to know how you would test different species of plants ability to photosynthesize. can anyone please help me?!?
...Farts always smell worse when you do them in the bath? This is a question that has puzzled me for a while now. H
Say I wanted to filter some liquid that contains different elements and minerals, and wanted to filter out certain ones. Is there a method of calculating the size of a particle to as to determine the...
Say I wanted to filter some liquid that contains different elements and minerals, and wanted to filter out certain ones. Is there a method of calculating the size of a particle to as to determine the...
Does anyone know a reliable account of ANYONE having survived immersion in water of 28F/-2C for over an hour and possibly nearer 2-2.5? Survival rates I've found for this temperature water are all...
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