Which way do you turn a standard screw to tighten it?
AnswerClockwise
Standard right-hand threads tighten clockwise, as in 'righty-tighty, lefty-loosey'.
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7 fact-checked facts about fixing and repairing things, each with the reason behind it. 5 more are in today's round and join this page after it closes.
The basics
What kind of screwdriver has a cross-shaped tip?
AnswerPhillips
A Phillips screwdriver has a cross-shaped tip that fits screws with a matching X-shaped recess.
Going deeper
What is the Japanese art of repairing broken pottery with lacquer dusted with gold called?
AnswerKintsugi
Kintsugi highlights the cracks with gold, treating the repair as part of the object's history.
A common way to find a small hole in a bicycle inner tube is to do what?
AnswerInflate it and look for bubbles in water
Air escaping from a puncture makes a stream of bubbles when the inflated tube is held underwater.
When a claw hammer pulls out a nail, it is acting as which simple machine?
AnswerLever
The hammer head acts as a fulcrum, so a small force on the handle makes a large pulling force on the nail.
Expert level
What material is the white thread-seal tape used by plumbers usually made of?
AnswerPTFE
Plumber's tape is PTFE, a slippery plastic that fills thread gaps to help joints seal.
What is the SI unit of torque, the turning force applied by a wrench?
AnswerNewton-metre
Torque is force times distance from the pivot, measured in newton-metres (N·m).
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