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John Callahan

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last 3 solved tasks
What kind of coat can only be put on when wet?
See negative of movie scene and guess the title. Length of words in solution: 6,7,4
3 ducks lay 3 eggs in 3 days. How many eggs will 300 ducks lay in 300 days?

Sandblasting

In 1870, sandblasting was patented by Benjamin Chew Tilghman (26 Oct 1821 - 1901). Compressed air forces sand as an abrasive material through the nozzle of a sandblasting gun. A popular myth holds that Tilghman, when a General in the army, had seen the effect of wind blown sand upon glass windows, in the desert. The sand has etched the glass where unprotected and revealed the contrast against parts that were covered by steel mesh. He has been called the "father of shotpeening." In 1866, he found sulphurous acid would dissolve the intercellular matter of wood, freeing the fibres for pulp, and became famous as the inventor of the sulphite process to make wood pulp for paper production.

Little Emily was complaining t...

Little Emily was complaining to her mother that her stomach hurt. Her mother replied, “That’s because it's empty. Maybe you should try putting something in it." The next day, the pastor was over at Emily's family's house for lunch. He mentioned having his head hurt, to which Emily immediately replied, "That's because it's empty. Maybe you should try putting something in it."
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