Results 131 to 140 of about 10,494 (268)

Flex-Gears [PDF]

open access: yes
Flex-Gears are being developed as an alternative to brushes and slip rings to conduct electricity across a rotating joint. Flex-Gears roll in the annulus of sun and ring gears for electrical contact while maintaining their position by using a novel ...
Peritt, Jonathan, Tsai, Lung-Wen
core   +1 more source

Microscopic geared metamachines. [PDF]

open access: yesNat Commun
Wang G   +7 more
europepmc   +1 more source

An Optical Altitude Indicator for Night Landing [PDF]

open access: yes
One of the most ingenious of the devices intended for use in night landing, especially emergency landing, is a very simple optical instrument known as the Jenkins night altitude indicator. The design and operation of this instrument, which allows a pilot
Warner, John A C
core   +1 more source

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