what is the heaviest and the lightest metals out there?
witch is heaver when you have the same volume; Lead, Gold, Platinum or Mercury? what comes next? then? and finally?
the most heavy metal is Iridium with at a mass 23.5 times the weight of water. and the lightest is Lithium with 0.59 times (so thats why batterys are made out if it)
Platinum 22 times, Gold 19, Mercury 13.5 times, and finally Lead with a mere 11.25
humm things you never knew nor needed t o know.
and my away message:
things that blow my mind:
Pulsars are quickly rotating planets that have a high density and emit radio signal bursts. The time between radio bursts, or ``pulses'', is typically a few seconds or less. For some pulsars, it's as short as a millisecond (a thousandth of a second). The time between bursts is equal to the rotation period of a neutron star; thus, some neutron stars are spinning on their axis a thousand times per second.
think about that we have a rotation period of 24 hours... whoa.