Apes are extremely intelligent – even more so than monkeys. They appear to work through problems in the same way that humans do. The orangutan is one example of an ape that has performed several complex tasks in research centers – such as solving puzzles, using sign language, and learning to recognize symbols […] Read more

“Ordeal in Space “by Robert A. Heinlein Maybe we should never have ventured out into space. Our race has but two basic, innate fears; noise, and the fear of falling. Those terrible heights—Why should any man in his right mind let himself be placed where he could fall…and fall…and fall—But all spacemen are crazy. Everyone […] Read more

Maybe we should never have ventured into space. Our race has two basic, innate fears; noise, and the fear of falling. Those terrible heights—Why should any man in his right mind let himself be placed where he could fall…and fall…and fall—But all spacemen are crazy. Everyone knows that […] Read more

Maybe we should never have ventured out into space. Our race has but two basic, innate fears; noise, and the fear of falling. Those terrible heights—Why should any man in his right mind let himself be placed where he could fall…and fall…and fall—But all spacemen are crazy. Everyone knows that. The Medicos had been very […] Read more

“Ordeal in Space “by Robert A. Heinlein – Abridged Version Maybe we should never have ventured out into space. Our race has but two basic, innate fears; noise, and the fear of falling. Those terrible heights—Why should any man in his right mind let himself be placed where he could fall…and fall…and fall—But all spacemen […] Read more

Maybe we should never have ventured out into space. Our race has but two basic, innate fears; noise, and the fear of falling. Those terrible heights—Why should any man in his right mind let himself be placed where he could fall…and fall…and fall—But all spacemen are crazy. Everyone knows that. The Medicos had been very […] Read more

The best method for preparing nonhalogenated cyclopropanes is the Simmon-Smith reaction. This reaction, first investigated at the Du Pont company, does not involve a free carbene. Rather, it utilizes a carbenoid—a reagent with carbene-like reactivity. When diiodomethane is treated with a specially prepared zinc-copper alloy, (iodomethyl) zinc iodide, is formed […] Read more

Poem: Theocritus – A Villanelle O singer of Persephone! In the dim meadows desolate Dost thou remember Sicily? Still through the ivy flits the bee Where Amaryllis lies in state; O Singer of Persephone! Simaetha calls on Hecate And hears the wild dogs at the gate; Dost thou remember Sicily? Still by the light and […] Read more

An oscillator is a circuit that is capable of a sustained AC output signal obtained by converting input energy. Oscillators can also generate square waves, ramps or pulses for switching, signaling, and control. Simple oscillators produce sinewaves, but another form, the multivibrator, produces square or sawtooth waves. These circuits were developed with vacuum-tubes, but have […] Read more