What is/are the process(es) to manufacture hydrogen? The reason I ask is I'm curious as to the amount of energy required to get and store hydrogen. And, if the process itself makes it an energy source worth the expense of manufacturing.
Popularizations aside, what is the real potential of Nanotech and Molecular Manufacturing?
Are they even possible?
If they are, will they be much cheaper than the current manufacturing methods or much more expensive?
Manufacturing fake news is not easy work!
Iraqis cry foul over 'hostage' mystery
((BAGHDAD (AFP) - Religious and civic leaders expressed fears of a conspiracy after a reported kidnapping siege in an Iraqi town ended without resistance and in the apparent absence of any hostages.
For...
Suppose that the cost of manufacturing x items is approximated by C(x)=625 + 15x +0.01x^2, for 1 < or equal to x < or equal to 500. The unit cost would then be U(x) = C(x)/x. How many items should be manufactured in order to ensure that the unit cost is minimized...
I DONT KNOW WHAT TO DO...
Calculate the minimum work required to manufacture 3.0kg of ice cubes from water initially at 0C. Assume that the surroundings are at 30C. The latent heat of fusion of water at 0C is 338.7kJ/kg.
My working:
e=1-\frac{273}{303}
then
e=\frac{work}{input}
input=(3.0)(338.7E3)
work=100.6kJ...
They have produced mice with two genetic moms -- and no father.
In fact, one of the mouse mothers was a mutant newborn, whose DNA had been altered to make it act like a male's contribution to an embryo.
But the new work sheds light on why people, mice and other mammals normally need a...