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Well actually you can still mail packages TO the us by ship mail.. The USPS stopped outgoing Surface mail, but actually that was on their own decision in an attempt to save money.
Specific energy of TNT = 4.18*10^6 Joules/kg
A Li-Ion battery will produce about 300 watt-hrs/kg 300 watt-hrs/kg * 3600 joules/watt-hr = 1.08*10^6 Joules/kg
A Li-Ion pile, with 1/4th the power of the same weight of TNT, is rather impressive. I can see why the authorities are concerned.
since when does nasa care about stuff catching on fire or exploding, or is there some sort of higher energy battery failure mode they prefer?
NASA has other considerations. For example, when astronauts used HP calculators, NASA required that the feet on the bottom be removed, to avoid possible outgassing from the rubber.
Since, I suppose, it costs giga-shekels per deca-stone to throw crap into orbit, it seems obvious they would not want to imperil the results.
Then there was:
because the inside of the shuttle is a high vacuum chamber?
How would engineers and scientists have known that pure oxygen + flammables could result in a fire?
They assumed the third side of the fire triangle -- an ignition source -- would never be present.
So electrity wasn't discovered (at least by nasa) until after the 1960s?
Lie.
As an Audiophilic Scientist For MIT, electricity discovery doesn't work like that and I know from my work at MIT on the Jupiter speech synthesis engines.
Adn I am Jesus Christ.
Really.
*larf*
That should cover that.
Electricity, per se, is not an ignition source.
and it takes crazy person to associate electrical equipment with the possibility of starting a fire?
how long have fuses been around now? over a century? the hazards of electrical equipment are well known, and no surprise to anybody outside of the broken and useless world of nasa.
I'd almost feel bad about the loss of jobs as nasa continues to loose funding, but let's face it, I would not trust anybody from that organization to even wire up christmas tree lights for me.
No, it takes a crazy person to assume that the electrical equipment in the spacecraft would never produce a spark that might start a fire.
so we agree that nasa is retarded, tries really hard to mess things up.
No, we don't agree. NASA's fault wasn't that it was trying to mess things up, but rather that it wasn't trying to anticipate and prevent problems.
"Foresight is 20/20." Almost all disasters, abuses of law, etc, are predictable.
Clowns that can't anticipate a fire in a pure oxygen environment filled with electrical equipment should not be designing spacecraft, or anything at all.
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