A pilot’s door did not appear fully closed before taking off from Fullerton Airport earlier this month and opened shortly after liftoff — prompting a call for an emergency landing minutes before the ...

After many attempts, the researchers perfected a multistep laser-cutting process that enabled them to precisely fabricate each wing hinge. With all four units in place, the new robotic insect can ...

If hinges are required, windows are odd shapes ... In this case, homeowners can get retractable fly screen doors that meet in the middle and fold back on themselves when opened. However, they are not ...