Author: staff@jalopnik.com (Rohaan Sakrani)

sanepk/Shutterstock Torque-to-yield (TTY) bolts, also referred to as angle torque or stretch bolts, are fasteners designed to be tightened beyond their elastic range and right into a controlled yield zone. Their job is to use a really precise and consistent clamping load and keep it there. All bolts stretch when tightened. In a standard bolt, that stretch stays inside the elastic phase. TTY bolts have a distinct working principle. Their tightening continues past the elastic limit, which causes them to physically deform. At this point, the bolt is permanently stretched and won’t return to its original length. To succeed in…

Lane lines that look half white and half black have gotten a typical sight for drivers on newer stretches of concrete highway across the country. Called contrast pavement markings, they’re designed to resolve a typical problem with standard white lines. And no, it isn’t white line fever, also referred to as highway hypnosis. It’s that they wash out on pale pavement, with the white stripes on light concrete almost disappearing on shiny days. By giving the attention something darker to deal with, the black component goes a good distance in fixing that. Traffic-safety engineers explain it as creating the identical…

Maksim Safaniuk/Shutterstock A standard theme of the widely used three-class e-bike system within the U.S. is that it exempts low-speed electric bikes from the headaches of licensing and registration. That is since it typically categorizes Class 1 and Class 2 e-bikes as traditional bicycles, separating them from motorcars. States only begin taking stricter measures when these bikes start becoming able to achieving motorcycle levels of speed. Alaska, Massachusetts, Latest Jersey, Latest Mexico, and Hawaii stand out because the places where riders cannot assume they’re within the clear. These states regulate e-bikes the identical way they regulate motorcycles. Top speed is one benchmark…