Calculate the number 8427
[1263] Calculate the number 8427 - NUMBERMANIA: Calculate the number 8427 using numbers [3, 9, 3, 8, 91, 950] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once. - #brainteasers #math #numbermania - Correct Answers: 29 - The first user who solved this task is Sanja Šabović
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Calculate the number 8427

NUMBERMANIA: Calculate the number 8427 using numbers [3, 9, 3, 8, 91, 950] and basic arithmetic operations (+, -, *, /). Each of the numbers can be used only once.
Correct answers: 29
The first user who solved this task is Sanja Šabović.
#brainteasers #math #numbermania
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A Jewish Landing

As the plane settled down at Ben Gurion airport, the voice of the Captain came on:
"Please remain seated with your seatbelt fastened until this plane is at a complete standstill and the seat belt signs have been turned off.""To those of you standing in the aisles, we wish you a Happy Hanukkah."
"To those who have remained in their seats, we wish you a Merry Christmas."

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Howe truss patent

In 1840, William Howe was issued a U.S. patent (No. 1,711) for a Truss Bridge. It differed from his earlier patent (10 Jul 1840, No. 1685) because - importantly - he replaced the wooden post members in his frame with vertical iron rods, furnished with screw nuts, to effect tensioning. He described “straining up, and cambering” by tightening the screws. The frame had top and bottom horizontal members, and crossed diagonal braces and counter-braces. Although these were originally envisioned using timber, the Howe Truss was later used in steel bridges. It was popular as a railroad bridge because it had good strength over long spans. Timber truss covered bridges were also built as road bridges. Wooden walls and roof were added to protect the frame from weathering. A few remaining examples have been conserved.«[Image: detail of part of frame, showing vertical iron rods and wooden members.]
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