The tiny strands of ultra-clear glass play a crucial role in just ... To stretch the thick glass tubes into ultra-thin strands, the machinery on the right heats the cylinders to roughly 2,000 ...

She plugs one end of a glass tube which has been coated with phosphorous on the inside and a blow hose on the other end. While she heated the tube, Vinton Eberly explained that she blows into the ...

When the tube is broken, the bolt slides back automatically which ... during accidental or real use, the broken clear glass was difficult to see and dangerous to pick up from the floor. Goodfellow ...