ScienceMeander on Sums of Exponents ScienceMeander on Sums of a Root ScienceMeander on Undefined Sums aFrankAngle on Gratitude Grumpy Old Man on On the Boy Scout thing
It seems to me that the safest kinds of boats or floating islands would be to use materials that are naturally buoyant, like plastic. A breached hull would be less catastrophic. Thin sheets use very little plastic, but we don’t … Continue reading
I found these formulas by playing around. I don’t know how to prove them with math. By trial and error I played around and looked for patterns in numbers. I compared calculations with a spreadsheet. Then, when I found the … Continue reading
Except for solar electric panels and petroleum-powered engines, man-made power is produced by heat-powered turbines. This means that wood fires could power turbines as well as wood stoves to produce either electricity or mechanical power. Unless someone can show me … Continue reading
Huh. is really just a special case of where the constant denominator d is 1.
The very nature of sums requires that the sum be defined when x = 1, which it often is not. This should help.
Most organisms decay in water. I soaked goathead seeds in a covered container of water for a full year. The water developed algae and became green, but at the end of the year, the seeds were as strong as ever. … Continue reading