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Do commercial jets have locks on the doors and ignition keys?
science.howstuffworks.com/transport/flight/modern/question311.htm
Do commercial jets have locks on the doors and ignition keys? If not, what keeps someone from stealing them?
Does hydrogen destroy metals?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/hydrogen-destroy-metal.htm
Hydrogen sounds great as the energy of the future until the topic of hydrogen embrittlement arises. Can we stop hydrogen from destroying metals?
Hangnail Tips and Treatments
health.howstuffworks.com/skin-care/nail-care/health/hangnails.htm
Hangnails can be very painful. Visit HowStuffWorks to learn all about hangnails.
Can hydrogen be the fuel of the future?
science.howstuffworks.com/environmental/energy/hydrogen-fuel-future.htm
When it comes to looking to the energy source that will replace fossil fuels, there are no shortage of options.
Physics Displacement Formula: How to Calculate Displacement
science.howstuffworks.com/math-concepts/displacement-formula.htm
Physicists use the displacement formula to find an object's change in position. It sounds simple, but calculating displacement can quickly get complicated.
Is ethanol really more eco-friendly than gas?
auto.howstuffworks.com/fuel-efficiency/alternative-fuels/ethanol-facts.htm
Ethanol facts help sort out which is better, ethanol or gas? Learn about ethanol facts, and find out if ethanol is more eco-friendly than gas.
How Brake Cleaner Works
auto.howstuffworks.com/auto-parts/brakes/brake-tests/brake-cleaner.htm
Brake cleaner can help improve the way your brakes function. Visit HowStuffWorks to learn all about brake cleaner.
How the Rotating Detonation Engine Works
auto.howstuffworks.com/under-the-hood/trends-innovations/rotating-detonation-engine.htm
The U.S. Navy intends to retrofit its ships with rotating detonation engines. Learn more about rotating detonation engines at HowStuffWorks.
1939 Studebaker L5 Coupe-Express
auto.howstuffworks.com/1939-studebaker-l5-coupe-express.htm
The 1939 Studebaker L5 Coupe-Express was more advanced than rival pickups. See pictures and learn more about the 1939 Studebaker L5 Coupe-Express.
How Green are Automotive Lithium-Ion Batteries?
auto.howstuffworks.com/fuel-efficiency/vehicles/how-green-are-automotive-lithium-ion-batteries.htm
Fossil fuels (like gasoline and diesel) are running out and getting a bad rap for nasty tailpipe emissions -- and rightly so. Learn more about how green are automotive lithium-ion batteries.