Recent content by feyn

So you could not get the iron to create a different crystal structure, which would stay this way when coming back ?

Sorry, my question was simply too long and complex to fit into the title. Basically my question is this. In the middle ages Iron was treated by repeatedly hearting it up and hammering it on the anvil. As far as I understand this, this would create a more dense material. So I asked myself...

Hi guys n girls, I have a real conundrum today. There us a rumor that if you put 2 pots of water, that are absolutely identical except that in one the water is boiling hot in the other it is room temperature, the one with the boiling water freezes faster. How can that be ? Pure logic dictates...

Let us get back to my meteorite. If it accelerates towards earth, it gains momentum hence energy, where does that energy come from ? In my naive understandingn it must somehow come from Earth , since Earth is accelerating it

Basically my question is this( and sorry if my formulations are at times a bit sloppy, English is not my first language) : 1. we know energy can neither be created nor destroyed, it can only neconverted from one form into another 2.We know that an object in space, that is moving, will move...

i have a question, that nobody seems to be able to answer : is math actually suited for reality ? Basically the idea is that reality seems to be granular, for example we have planks time. Usually the difference is so small, that is doesn't matter, but if you bring things like infinity into the...

I am starting to suspect it is not a single explanation at all, but the sum of various effects that summed up lead to this puzzling phenomenon ;) I will say more about that when i have more time

Hi studiot well after thinking everything through that is the only explanation i can think of that makes any sense whatsoever. If you observe lava lamps,and meassure the temp difference there,you realize you get quite a current going with just little temperature differences ( 3° are already...

I think i have solved it ! Before anybody thinks he could send it into get the 1000 pound before me,they do not accept any more entries ;) First of all this works not in every case, it depends on the container (you will later see why). The container should be 4-10 cm diameter and at least 5...

I have questions to a classic experiment : you have 2 equal containers filled with water. IN one the temperature of the water is 98° Celsius, in the other the water has 25° Celsius. If you put both in the freezer the one with the hotter water freezes first. Now i do understand that one looses...