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Dave Tweed
  • Member for 7 years, 7 months
  • Last seen this week
  • Lowell, MA
27 votes
Accepted

What is a reason that handlebars fit to a motorcycle and steering wheel fit to a car?

22 votes
Accepted

Why would a bearing plate that further concentrates load onto small surface be used?

20 votes
Accepted

What is this Y-shaped screwdriver bit, and what is its purpose?

16 votes

Copper is more conductive, so why use lead battery terminals?

15 votes
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Why do water mains break in the winter?

15 votes
Accepted

What is the mechanical element that holds a worm gear shaft in place called?

14 votes

Are pneumatic tires obsolete?

13 votes

How do engineers really use numerical simulation?

12 votes

Do solar cells age? Why, and how?

12 votes
Accepted

Calculating torque needed to climb a graded hill

10 votes
Accepted

Difference in energy consumption between empty fridge and fridge filled with bottles of water

10 votes

Hovercraft design parameters

10 votes
Accepted

How does a nuclear reactor initiate nuclear fission?

9 votes

Is there a mechanical equivalent to a hi/low pass filter (as in electrical engineering)?

9 votes
Accepted

Why does reducing the amount of emissions control improve the fuel economy of a car?

9 votes
Accepted

How to correctly size the blades for a small educational wind turbine?

9 votes

Mechanism of gear rotation

9 votes

Why are most standard bolt threads single start?

9 votes

What is a Spiral Curve, and How is it Different from a Normal Curve?

9 votes

Energy required to raise temperature of water flowing through a heater

8 votes

How many power strokes per rotation in a 3 cylinder engine?

8 votes

How to stop water flow in a siphon?

8 votes

What engineering advances paved the way for "modern" computers?

8 votes

Are small car engines designed to tolerate a higher duty cycle than large car engines?

8 votes

Why do microwaves get louder when the timer goes off?

8 votes

What device is this, and how does it work?

7 votes
Accepted

IC engine where the piston is the spark plug

7 votes
Accepted

Why does "Google self-driving car"'s roof camera rotate?

7 votes
Accepted

Radiators in series or parallel?

7 votes
Accepted

Rotating two shafts together - coupling rod?