Al Hoang

A friend of mine asked me about the history of Zero which led me to the
Wikipedia entry on Zero
which led me to a Professor’s page on the discussion of zero and why
division by zero is undefined. Something that should be taught in grade
schools but is probably forgotten by many many people over many years
of not actively using it (except for people who deal with divide by zeroes
everyday in their life).

The main point to remember is x / 0 is an undefined operation. It
is not infinity as many others might think. For a long discussion check
out the page. It also shows a faulty way to get 1 = 2 all because
of the assumption of being able to divide by zero.

To the Saga of Zero

This might be useful. A Japanese reseacher has managed to combine
a solar cell and a battery into one structure. They dub it the
photocapacitor. Seems currently that the charging voltage and the
charging-discharge capacity need to be increased to be useful at a practical
level. We can translate that as, “it works, but it doesn’t work well
enough for you to work with at home.” But a very useful step if you ask
me. Can’t wait until these are in mass production which might be
sometime in the next decade… I hope.

Read the announcement yourself

The Laboratory it came from