User DKNguyen

34 votes

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How do heat pumps output more heat kW than the electrical kW used to run the heat pump?

answered Jan 29, 2023 at 19:50

27 votes

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

answered Jun 16, 2021 at 14:45

20 votes

Aluminum weight saving

answered Sep 9, 2021 at 21:03

18 votes

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How can I calculate the power and torque required for the motor on a wheeled robot/vehicle?

answered Oct 13, 2019 at 23:44

18 votes

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Can a very bright light attract an incoming laser guided weapon?

answered Mar 15, 2022 at 18:48

9 votes

Is there such a thing as a sand-proof bearing?

answered Feb 23, 2022 at 6:17

8 votes

On a car with all-wheel drive, how does the engine provide the angled front wheels with power?

answered Jun 7, 2022 at 17:29

6 votes

Working out Motor torque

answered Oct 13, 2019 at 19:37

5 votes

Electric go kart

answered Jul 17, 2020 at 2:59

5 votes

What is this "clamp" place on a piece of bar stock while turning it in a lathe for?

answered May 19, 2021 at 4:08

5 votes

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Meaning of quarter hole color fill in drawing

answered May 19, 2021 at 7:59

5 votes

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Why do blacksmiths use these 2 tools which seem to do the same thing

answered Jul 7, 2021 at 19:56

5 votes

Why can't screws be used for locating parts?

answered Oct 16, 2021 at 4:19

4 votes

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Motor to rotate gear and hold place when powered down

answered Dec 1, 2021 at 5:38

4 votes

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is a positive acceleration indication that velocity must be positive?

answered Jun 1, 2021 at 21:17

4 votes

Why radio communication was limited to military use and did not become popular with general public like cell phones have become today?

answered Oct 9, 2020 at 21:54

4 votes

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Glide Ratio of an unpowered "sub"

answered May 10, 2022 at 20:12

4 votes

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How are high accuracy grinding stones and disks made?

answered Oct 26, 2022 at 4:44

4 votes

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Why Sintered Tantalum Powder Forms a Sponge-Like Structure?

answered Nov 28, 2022 at 20:07

4 votes

What wire are mechanical keyboard switch compression springs made of?

answered Jun 8, 2023 at 16:36

4 votes

Is copper wool (rather than traditional brass wool) good for cleaning heavy black oxidation off soldering tip?

answered Feb 13 at 0:00

4 votes

Why Are Ground-Based Robots Less Common in the Ukraine Conflict Compared to Drones?

answered Feb 29 at 17:16

3 votes

Origins of the "threaded fastener pullout formula"

answered Jan 29, 2023 at 6:32

3 votes

Can a variable be locked at hardware level?

answered Feb 21, 2023 at 20:14

3 votes

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What is the metallic alloy used in camera cases?

answered Feb 15, 2023 at 5:43

3 votes

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Are vacuum actuated artificial muscles as hard to control as the pneumatic ones?

answered Nov 25, 2022 at 20:34

3 votes

What is the theory behing why is it harder to bend a block of wood on its thinner side when load is put onto it

answered Aug 1, 2022 at 14:07

3 votes

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What are the practical solutions to manufacturing this mechanical piece?

answered Aug 14, 2022 at 17:15

3 votes

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Welding Carbon fibre

answered Jul 8, 2020 at 5:38

3 votes

How to stop the leakage from the design?

answered Nov 20, 2020 at 21:40

Stack Exchange Network

210 Answers

How do heat pumps output more heat kW than the electrical kW used to run the heat pump?

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

Aluminum weight saving

How can I calculate the power and torque required for the motor on a wheeled robot/vehicle?

Can a very bright light attract an incoming laser guided weapon?

Is there such a thing as a sand-proof bearing?

On a car with all-wheel drive, how does the engine provide the angled front wheels with power?

Working out Motor torque

Electric go kart

What is this "clamp" place on a piece of bar stock while turning it in a lathe for?

Meaning of quarter hole color fill in drawing

Why do blacksmiths use these 2 tools which seem to do the same thing

Why can't screws be used for locating parts?

Motor to rotate gear and hold place when powered down

is a positive acceleration indication that velocity must be positive?

Why radio communication was limited to military use and did not become popular with general public like cell phones have become today?

Glide Ratio of an unpowered "sub"

How are high accuracy grinding stones and disks made?

Why Sintered Tantalum Powder Forms a Sponge-Like Structure?

What wire are mechanical keyboard switch compression springs made of?

Is copper wool (rather than traditional brass wool) good for cleaning heavy black oxidation off soldering tip?

Why Are Ground-Based Robots Less Common in the Ukraine Conflict Compared to Drones?

Origins of the "threaded fastener pullout formula"

Can a variable be locked at hardware level?

What is the metallic alloy used in camera cases?

Are vacuum actuated artificial muscles as hard to control as the pneumatic ones?

What is the theory behing why is it harder to bend a block of wood on its thinner side when load is put onto it

What are the practical solutions to manufacturing this mechanical piece?

Welding Carbon fibre

How to stop the leakage from the design?