Re: E=mc2 not quantitatively confirmed in bombs exploded on Hiroshima and Nagasaki in 1945 ? There is no data how much mass (m) is destroyed and how much energy is emitted (E).

The hiroshima bomb was only half the power expected this is because the
fireball expanded in about 100 milliseconds and the effect was to slow down
the reaction and reduce the yeild.

The mass of uranium was far less than stated by the poster. Fat boy and
little boy are fiction. The bomb was tucked into the pocket of a parachute
flare and tossed out of the bomb bay of the enenor grey by hand. The bomb
was set of my an altimeter and set so the bomber had time to get clear, my
dad in a chase reconnicance aircraft wondered what hit him and was badly
tossed about as was the elenor grey.

My Japanise friends grandfather was the spotter who witnessed the parachute
flare and then went to tea just before the bomb exploded.

I personally aplologised. I then told her how my uncle was treated in
Japanise prison camp in singapore and how al his mates were bayonetted to
death with their own bayonets while they slept in the jungle stop over.

In fact the critical mass of uranium 235 is less than 5 g. You can work it
out from the yeild of hiroshima (20 KT TNT) and the mass defect. U>Sr+Cs add
up the masses on each side and (stable isotopes - published in standard
tables). Take the difference and multiply by c^2 to get the yeild per mole
and work backwards.

I used to make them you know. A little cottage industry, after about a week
they said I had mad too many we don't want too many of those things. It is
like handling lead, there is little yellow deposit caused by oxidation. We
sometmes we had accidents when they fell on the floor, if two fell on top of
each other they "fizzed".

One bloke there took five of these things to isael as samples and people
often just went missing.

It was albert einstien who invented them and then spent his life regretting
it, the same applies to my boss prof rotblat and edward teller who used fred
hoyles astrophysics to invent the h -bomb. Unfortunately it cannot be
uninvented.

The critical mass calculation is a five line affair. I hated my job and
became a washer up instead.

Then they started killing my friends - I do not know why, but it upsets you.

We have even better ones now.... smaller, cheaper, lighter for a couple of
dollars you can destroy a city.

They murdered 3 of my my wifes, and four other girls I know well and
skewered mum's brain with a knife.

That is the brits, shrinks and christians did that, you can go off people
you know.

The brits are terrible liers you know and they are very good at murder.



"sciencecool@xxxxxxxxxxx" <sciencecool@xxxxxxxx> wrote in message
news:1168169669.558396.177290@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
E=mc2 not quantitatively confirmed in bombs exploded on Hiroshima
and Nagasaki in 1945 ? There is no data how much mass (m) is destroyed
and how much energy is emitted (E).

(i) Robert Serber (member of first American team entered
Hiroshima and Nagasaki in September 1945 to assess loses), has
indicated [1] that the efficiency of "Little Boy" weapon [U235 ,
49kg ] that was used against Hiroshima was about 2% only.
---------------------------------------------------------------------------------------------------------------
[1] Serber , R The Los Alamos Primer (U.S. Govt. first published as
LA1, April 1946),
declassified 1965 , annotated book , 1992. also R
. Serber (editor) , The Los Alamos Primer pp. 38 (Univ. of
California Press, 1992)

(ii) It is assumed that all the atoms don't undergo fission, thus
material is wasted. But no such waste material is specifically measured
quantitatively.
Thus the waste material (nuclear reactor or weapon) must be measured
and corresponding energy is calculated. Only then efficiency will be
explained, why it is 2%
(iii) But no measurements and calculations have been done till date.
Until such calculations and measurements are done specifically, it
cannot be said that E=mc2 is quantitatively confirmed in such cases.
The more information in this regard can be found and issue can be
discussed at
http://www.ajayonline.us



.

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