Beam

Beam What shape are bridge beams?
What shape are bridge beams?
In its most basic form, a beam bridge consists of a horizontal beam that is supported at each end by piers. The weight of the beam pushes straight dow...
Beam What does a triple beam do?
What does a triple beam do?
The triple beam balance is an instrument used to measure mass very precisely. Such devices typically have a reading error of ±0.05 grams. ... The trip...