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Greece

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Top Questions
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54
Why are railroad tank cars bent in the middle?
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44
Why are engine blocks so robust apart from containing high pressure?
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36
How does turning off electric appliances save energy
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33
Why exactly does a washer help distribute the stress around a bolt?
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26
Why does light bend after travelling half of the lens?
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26
Why does "potential energy" have the word "potential" in it?
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24
How do vending machines prevent people from stealing goods?
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24
How do suction cups work?
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23
Why does a gear have extra holes?
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21
What unit of weight is that?
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18
Why does a jumping rope have no bending stiffness and compression stiffness?
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16
How do ball bearings not crack from a load concentrated on an infinitesimally small point?
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14
What is the physical reasoning behind metal becoming stronger and harder if heat treated?
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12
Can gravity be a driving force for a spring-mass system?
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11
Brittle = highly stiff but not very strong
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11
What happens from B to C in this stress strain diagram of mild steel?
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11
What kind of metal are eye glasses frames made from?
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11
Unknown circuit component with glass encapsulated contacts
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11
Why does corrosion take place at certain stressed regions?
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11
Is cast iron better that Copper or Aluminum for cooking steaks?
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10
Why are train brakes so complicated?
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10
How does a (pulley based) continuous variable transmission (CVT) work?
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9
When a car with an open differential turns, why does the inner wheel slow down and the outer wheel speed up?
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9
Is the main goal for wind turbines to take maximum energy for a given diameter?
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9
Aluminum weight saving
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9
Why does temperature not increase by putting more logs into the fire
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9
Unit of "cN.m" used on torque wrench
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9
Mechanical Advantage of 3 Pulley System
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9
What is the accepted way to write units when specifying multiple dimensions?
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8
How much power does it take to supply a laser which delivers 100 watts?
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