User Chris Johns

116 votes

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 (Why haven't they been replaced by plastics?)

answered Feb 13, 2016 at 11:27

37 votes

Why did steam locomotives not transfer power by cogwheels?

answered Mar 1, 2018 at 19:59

27 votes

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

answered Nov 29, 2017 at 17:13

25 votes

Accepted

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

answered Feb 21, 2016 at 1:24

19 votes

Accepted

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

answered Jan 25, 2016 at 15:33

18 votes

Accepted

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

answered Feb 18, 2017 at 12:48

12 votes

Accepted

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

answered Mar 20, 2018 at 12:07

12 votes

Accepted

Why wont Petrol engine run on Acetylene?

answered May 30, 2016 at 10:25

11 votes

Why use bushings of different material than what they contact?

answered Jan 25, 2016 at 17:31

11 votes

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

answered Feb 3, 2016 at 17:29

10 votes

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

answered Feb 24, 2016 at 12:50

10 votes

Calculation of Clamping force from bolt torque

answered Apr 7, 2016 at 9:47

9 votes

PID controller explanation

answered Feb 29, 2016 at 22:01

9 votes

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

answered Feb 19, 2016 at 19:08

9 votes

Accepted

Why manufacturers prefer Brass over Copper in electrical conductors?

answered Dec 17, 2016 at 16:59

8 votes

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

answered Feb 19, 2017 at 1:19

8 votes

Accepted

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

answered May 27, 2016 at 19:47

7 votes

When are Nyloc nuts indicated instead of cap nuts?

answered Aug 25, 2017 at 15:40

7 votes

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

answered Nov 8, 2017 at 21:40

7 votes

Accepted

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

answered Jan 17, 2016 at 16:21

7 votes

Many small bolts, or few large bolts?

answered Jan 15, 2016 at 19:26

7 votes

Accepted

Heat pipes vs fluid cooling

answered Mar 2, 2016 at 21:19

7 votes

Accepted

What would be the implications of a metal highway design?

answered Apr 10, 2016 at 9:37

7 votes

Accepted

Do "non-iron steels" exist?

answered Apr 21, 2016 at 12:12

6 votes

Accepted

Why are coils used to generate magnetic fields

answered Mar 21, 2017 at 21:06

6 votes

Accepted

Reason of Using exactly 5 Wheel Studs per Wheel

answered Apr 4, 2017 at 12:36

6 votes

Accepted

Why are car bodies not made of titanium?

answered Apr 21, 2017 at 8:48

6 votes

Accepted

How does an expansion tank work?

answered Nov 9, 2018 at 18:06

6 votes

Accepted

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

answered Apr 3, 2019 at 20:00

6 votes

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

answered Apr 6, 2016 at 13:49

Stack Exchange Network

490 Answers

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

Why did steam locomotives not transfer power by cogwheels?

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

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

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

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

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

Why wont Petrol engine run on Acetylene?

Why use bushings of different material than what they contact?

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

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

Calculation of Clamping force from bolt torque

PID controller explanation

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

Why manufacturers prefer Brass over Copper in electrical conductors?

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

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

When are Nyloc nuts indicated instead of cap nuts?

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

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

Many small bolts, or few large bolts?

Heat pipes vs fluid cooling

What would be the implications of a metal highway design?

Do "non-iron steels" exist?

Why are coils used to generate magnetic fields

Reason of Using exactly 5 Wheel Studs per Wheel

Why are car bodies not made of titanium?

How does an expansion tank work?

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

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