High-strength threaded inserts

I think this vehicle will have uses beyond wheelchairs. The ability to wheel a heavy object into a vehicle would be very useful to the rest of us. ...

The substances used to make the smell in natural gas are sulphur based (mercaptan) and sulphur poisons hydrogen fuel cells and prevents them form...

I'm not a chemist but as I understand it, current stench molecules won't bind to pure H2. No problem with a Natural Gas +15% H2 mix as the ...