First off, I'm an atheist. I see no good reason to believe in some 'higher' power. Religion to me is goblydegook, superstition and nothing more. However, I cannot wrap my head around the idea that...
When a high-energy photon forms an electron/positron pair the electrons always have the same mass, charge, etc. Why? If you sent dough to several locations to be made into loaves, the loaves would all...
According to Brian Cox on a recent episode of Wonders of the Universe, everything in said universe is made up of 99.99% empty space. He reckoned that atoms have a nucleus with accounts for most of...
I always thought that at the Spring (and Autume) Equinox the lenght of the day and night would be exactly the same. However, I noticed that the published sun/rise set times showed a difference of a...
I was reading that the Voyager probe is now 74 billion kilometres away from earth. I'm just wondering how far is that in terms of a light year. For fun could someone give the answer as a reference to...
Calculation of atp from glucose, how many ? How are they generated? What is the conversion of high energy intermediated? To atp
Which reactions producing intermediates used to generate atp...
Yesterday in his absorbing series he showed a rock so old it must have formed during the big bang and arrived by a passing meteorite or comet. A slice taken showed small remnants of nucleic acids...
In Brian Cox's "wonders of the universe" on Sunday night, he clearly said that the ultimate fate of the universe was the "Heat Death" and implied it was innevitable. Now far be it...
With more people travelling and more inter racial relationships, is it conceivable that in another few thousand years all humans will have a similar look rather than showing features which can give...
does any one understand what the fine structure constant is? the nearest I've got is that is 'characterises' electromagnetic interaction (whatever 'characterises' means here) and the 'answer' (value)...
Hey, If anyone can help me with this it'd be much appreciated, tnx. *Q*:A hydrogen atom is in the third excited state. It makes a transition to a different state and a photon is either absorbed or...
Things that reflect 650 NM light, such as a strawberry, enable us to have knowledge of them. Is such a red property a property of the strawberry or a property of our knowledge of such?