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NMech
  • Member for 3 years, 1 month
  • Last seen more than a week ago
54 votes
Accepted

Why are railroad tank cars bent in the middle?

44 votes
Accepted

Why are engine blocks so robust apart from containing high pressure?

36 votes
Accepted

How does turning off electric appliances save energy

33 votes
Accepted

Why exactly does a washer help distribute the stress around a bolt?

26 votes

Why does "potential energy" have the word "potential" in it?

26 votes
Accepted

Why does light bend after travelling half of the lens?

24 votes
Accepted

How do vending machines prevent people from stealing goods?

24 votes
Accepted

How do suction cups work?

23 votes
Accepted

Why does a gear have extra holes?

21 votes
Accepted

What unit of weight is that?

18 votes
Accepted

Why does a jumping rope have no bending stiffness and compression stiffness?

16 votes

How do ball bearings not crack from a load concentrated on an infinitesimally small point?

14 votes

What is the physical reasoning behind metal becoming stronger and harder if heat treated?

12 votes

Can gravity be a driving force for a spring-mass system?

11 votes
Accepted

Unknown circuit component with glass encapsulated contacts

11 votes

Why does corrosion take place at certain stressed regions?

11 votes

Is cast iron better that Copper or Aluminum for cooking steaks?

11 votes

Brittle = highly stiff but not very strong

11 votes
Accepted

What kind of metal are eye glasses frames made from?

11 votes
Accepted

What happens from B to C in this stress strain diagram of mild steel?

10 votes

Why are train brakes so complicated?

10 votes
Accepted

How does a (pulley based) continuous variable transmission (CVT) work?

9 votes

Why does temperature not increase by putting more logs into the fire

9 votes
Accepted

Unit of "cN.m" used on torque wrench

9 votes
Accepted

Mechanical Advantage of 3 Pulley System

9 votes

What is the accepted way to write units when specifying multiple dimensions?

9 votes

When a car with an open differential turns, why does the inner wheel slow down and the outer wheel speed up?

9 votes

Is the main goal for wind turbines to take maximum energy for a given diameter?

9 votes

Aluminum weight saving

8 votes

How much power does it take to supply a laser which delivers 100 watts?

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