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kishore c.k

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last 3 solved tasks
Determine the value of the number ABCD
What will be the missing number? (28, 33, 31, 36, ?, 39)

Snow melting apparatus

In 1890, black American inventor Frank J. Farrell of New York City was issued a patent for an "Apparatus for melting snow" to be placed in a street gutter (No. 428,670). The box-shaped apparatus was designed so that the upper surface, a removeable cover, formed a portion of the bed of a street gutter. Inside, a duct for heated fluid had openings under a perforated tray, and drain holes. Steam could be supplied from an adjacent house. An automatic steam trap using a float-ball prevented the waste of live steam. The patent described that snow would be thrown upon the surface tray to be melted; the perforated tray caught sticks and stones. Earlier in the year, he patented a steam trap. He patented eight valves between 1890 and 1893.

The way to achieve true inner peace

Sir Bedevere:

'Now, why do witches burn?'

Peasant:

'...because they're made of... wood?'

Sir Bedevere:

'Good. So how do you tell whether she is made of wood?'

Peasant 2:

'Build a bridge out of her.'

From Monty Python and the Holy Grail

Picture: Rex Features

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