The wavelength is what determines light’s color, and these LEDs are amber (605-nanometer wavelength), light red (630 nm), deep red (680 nm), and near infrared (855 nm).

inTouch aims to strengthen seniors’ memories and boost their mental health by addressing what Le Moigne calls a "loneliness epidemic." A recent National Poll on Healthy Aging found that 75 percent of ...

Dick Tracy got an atom-powered two-way wrist radio in 1946. Marty Cooper never forgot it. The Chicago boy became a star ...

EERIE snaps from the UK’s biggest red phone box graveyard reveal rows of rusting kiosks. The chilling snaps show the 70 rotting booths stood next to the abandoned train line, but the graveyard ...

After the Cuban Missile Crisis brought the world to the brink of nuclear war in 1962, a “red telephone” hotline between the Pentagon and the Kremlin was established and ran through here.

Mike Pence Seemingly Calls His Wife 'Mother' If you already know of one red flag about Mike and Karen Pence's marriage, it's likely his unusual nickname for his wife.

LONDON (AP) — There is a history-rich part of London that few people have seen, where the city braced for the Blitz, James Bond’s creator got inspiration and secret Cold War messages passed between ...

LONDON (AP) — There is a history-rich part of London that few people have seen, where the city braced for the Blitz, James Bond’s creator got inspiration and secret Cold War messages passed ...

He was unsuccessful – but the ability of the telephone to connect those who would otherwise remain forever disconnected survives. In the hands of Joe Bloom, creator of Instagram account A View, From a ...

Apparently both phones will be sticking with the 6.27-inch and 6.86-inch displays that we have on the iPhone 16 Pro series — so don't expect any major size changes to either phone.