The first Class 555 electric multiple unit has entered service on the Tyne and Wear Metro. The unit, 555021, was used on the 1104 Pelaw-Monkseaton via Newcastle city centre on Wednesday December 18, ...

NEW YORK (PIX11) — A new affordable housing apartment complex in Manhattan has rents that begin at $555, according to the Housing Connect website. North Cove Apartments, located in the Inwood ...

This new robot, building off of the team’s previous design, introduced what Qing calls a “monostable snapping mechanism.” Previously, researchers would have to pump compressed air into the ...

and [learnelectronics] has a video showing the three major modes you typically see with the 555: astable, bistable, and monostable. The 555 is really only a few comparators, a voltage divider ...

You know how to whistle don’t you? You just put your lips together and blow. But do you know how to make the electronics around you react to your whistled commands? Well [Befi] figured out a ...