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user_1818839
  • Member for 7 years, 4 months
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46 votes

Why do glass windows still exist? (Why haven't they been replaced by plastics?)

13 votes

Why use steam instead of just hot air?

8 votes

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

8 votes

What is the Best Heat Resistant Translucent Material?

6 votes

Why don't hydroelectric plants use cascades of turbines instead of single turbines?

6 votes

What is the use of gears in a device with a fixed gear ratio?

6 votes

Why is electrical energy most commonly stored in metal acid batteries?

5 votes
Accepted

How this radio knob converting a rotation into a straight-linear motion?

5 votes
Accepted

Reverse-engineering spur gears - do I have enough data to make a gear that will mesh correctly?

4 votes

How to calculate hydropower in kW without water head

4 votes

What are the technical obstacles for using flywheel-based regenerative braking on bicycles?

4 votes

Why do train cars have unevenly spaced axles?

3 votes

Windmills in empty fields. Why no trees?

3 votes
Accepted

A couple of questions about making an electric hobby car from scratch

3 votes

Why aren't screens round instead of rectangular?

2 votes

What type of positive displacement pump is used for vacuum liquid extraction?

2 votes

Mechanism of gear rotation

1 vote
Accepted

Is it possible to use Ammonia vapor in steam turbine

1 vote

What do they call that elegant triangular scaffolding often used in future-oriented architecture?

1 vote

What is proper name of shaped shaft ends for ensuring their mutual position?

0 votes

Mounting a pcb at a different angle than mold direction

0 votes

How much ballast is required in 110 mph winds to stabilize: a 60 lb., 20’ pole; 3' below ground/17’ above ground, with a 24lb. wind turbine atop it?

0 votes
Accepted

Best insulation material for pipes @ 500℃

0 votes

Selectively rotating (engaging/disengaging) one of 80 couplings on a small shaft?

0 votes

Why isn't it possible to build a car moved by wind power?