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Find number abc

If a1c1b - 246b2 = c69ba find number abc. Multiple solutions may exist.

Correct answers: 1

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Grab a tea

Grab a tea: what Isaac Newton did when he was thirsty.

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Rocket patent

In 1859, Andrew Lanergan, of Boston, Mass., received the first rocket patent for "an improvement in exhibition rockets" (U.S. No. 24,468). His design allowed for the fuse (which he called the "match") to be pre-assembled with the rocket. The outer end of the fuse was packed inside a recess at the bottom of the rocket and covered with a light seal which could be easily broken to draw out the fuse when needed. Thus, he claimed a greater safety from accidental firing by falling cinders or sparks falling on exposed fuses.

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