You can make sugar cubes glow in the dark by twisting and grinding them
together as hard as you can in a really dark place. Be persistent, it may
take a minute or two and the green glow is dim, but you should be able to
If you get a friend to crunch Wint-O-Green Lifesavers in the dark with his/her mouth
open you will see flashes of light. These are much brighter than the sugar cubes.
"James the younger", at Lake Ouichita (pronounced wash-i-tah) State Park, Arkansas
says this is called "sparking".
I was told by a specialist in computer programs that try
to understand the English language that he has a favorite challenge for his
colleagues' programs. It is, "Time flies like an arrow. Fruit flies like
Cute 30 second MPEG movie that was circulating at work. Rumor has it
that it was produced at Silicon Graphics, but probably not officially. This may not
be entirely politically correct in all circles, so if you are easily offended don't watch
it, or watch it only for the quality of the animation, in which
case you should copy it to your computer first and watch your copy. If you don't have software to
play mpeg you can download Quicktime
for PC or Mac from Apple.
"For every action there is an equal but opposite reaction."
What does Newton's third law of motion really mean? Find out here.
Some other rather curious sites
simulation of the World War II era mechanical Curta calculator. (For you youngsters,
that is well before the age of digital electronics and before the
word 'computer' acquired its current meaning.)
Curta manual to learn how to use it.