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Chris Johns
  • Member for 6 years, 7 months
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111 votes

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 (Why haven't they been replaced by plastics?)

36 votes

Why did steam locomotives not transfer power by cogwheels?

26 votes

From an engineering point of view what are the downsides of a too accurate model?

25 votes
Accepted

Why would you launch a large ship by dropping it sideways?

18 votes
Accepted

Why was Freon used in spray cans before it was declared a threat to ozone?

18 votes
Accepted

Is it possible for a bicycle chainwheel to have a fractional number of teeth?

12 votes
Accepted

Is it useful to stuff my glasses with newspaper to protect them?

12 votes
Accepted

Why wont Petrol engine run on Acetylene?

11 votes

What material is used to hold molten iron in a furnace?

10 votes

Why use bushings of different material than what they contact?

10 votes

Why do we use multiple reinforcing bars instead of one bar with a big diameter in reinforced concrete?

10 votes

Calculation of Clamping force from bolt torque

9 votes

PID controller explanation

9 votes

Are there any materials known to be sound-insulating but thermally-conductive?

8 votes

What's the name of the white lubricant that children's toys often use?

8 votes
Accepted

Is it safe to hold up a large heavy mirror with copper wire?

8 votes
Accepted

Why manufacturers prefer Brass over Copper in electrical conductors?

7 votes

When are Nyloc nuts indicated instead of cap nuts?

7 votes

Why conduct experiment for load distribution within three triangulated structural frameworks when you can calculate theoretically

7 votes
Accepted

How do I add a resistance to mechanical movement in both directions, apart from friction?

7 votes

Many small bolts, or few large bolts?

7 votes
Accepted

Heat pipes vs fluid cooling

7 votes
Accepted

What would be the implications of a metal highway design?

7 votes
Accepted

Do "non-iron steels" exist?

6 votes
Accepted

Why are coils used to generate magnetic fields

6 votes
Accepted

Why are car bodies not made of titanium?

6 votes
Accepted

How does an expansion tank work?

6 votes
Accepted

If gold is a worse electrical conductor than silver and copper, why are gold plated contacts considered "better" by the market?

6 votes

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

6 votes

RC car steering mechanism type

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