Engineering publications brought to you by Mark Allen

Technology

Aluminium beam air bearing costs a fifth of granite system

Linear motion gets double act

Dental bearing ups device life by four

Check valve ideal for medical luer adaptors

Geared motor gives precise motion on X-ray scanner

Active latch locks motion with tiny power

Variable collets extract all bushes

Natural frequency of vibration gives precise tension in wires

Stirling effort keeps its cool while on the move

Cross links cushion impacts

Dark spot shows gas dew point

Size counts for everything