Can you define what you mean by 'start up time' please. It could mean the time to build the plant and commission it, or it could mean the time to start up from cold.
Not really. Control rods are used to start up and shut down a nuclear reactor.
To make a nuclear bomb, you need the fissionable material such as a Plutonium239 isotope, an explosive to start the nuclear chain reaction, a detonator, and a pusher.
We might use californium as a neutron source in a nuclear reactor. Californium is a neutron emitter, and it can be used to "enhance" start-up abilities of a reactor where the fuel isn't as "good" as it might be in a core of, say, highly enriched uranium.
Nuclear mass --> energy conversion is most of it. Conventional explosives start it.
A nuclear meltdown will be in process releasing radioactive material
This list shows the type of fuel in order of start of time going from short to long.gas-fired station (shortest start-up time)oil-fired stationcoal-fired stationnuclear power station (longest start-up time)However I do not know the exact time.S. T. Wilson
Gas stations start up the quickest because they use gas turbines and do not require water to be boiled up to produce steam.
At any time Russia could have blew us up with nuclear weapons
Not really. Control rods are used to start up and shut down a nuclear reactor.
stockpiling
The US was the first to start testing nuclear weapons
In actuality, a spontaneous fission event begins a nuclear chain reaction. It kick starts a nuclear chain reaction. And a neutron from that fission will initiate another fission to continue and rev up that nuclear chain reaction.
A nuclear war will never start referring to any foolish prophecy. Nuclear wars cannot speak.
The only country with nuclear weapons who can dare to start a nuclear war is Pakistan coz they have no brains
Nuclear Time was created in 2010.
A nuclear or biological assault could initialize a nuclear war.
Start by assuming some 'facts' that would start a nuclear winter. How many bombs must be dropped to actually start a nuclear winter situation? For each bomb, how much dust is kicked up into the atmosphere? Of that, how much will stay in the upper atmosphere? How much sunlight will then be reflected, causing the cooling effect? Make all these estimations. Keep going from there.