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Earth's second moon is discovered

Scottish astronomer Duncan Waldron discovered strange asteroid which he named Cruithne (from old Irish). It orbits the Sun, but so close to Earth, that it is sometimes called second Moon. Relative to Earth Cruithne's orbit looks like a horseshoe. Astronomers later found more similar objects near Earth.

Third most used plastic is patented

American inventor Waldo Semon developed a method of making plasticized polyvinyl chloride (PVC), also known as vinyl. PVC was first synthetized by German chemist Eugen Baumann. It looked like potentially useful material, but it was too rigid. Waldo Semon invented a way to make it in a rubber-like form.

Anniversaries of the (in)famous