« October 13, 2021 | Main | October 15, 2021 »
October 14, 2021 Archives
Thursday, October 14, 2021
TRACKING WITH CLOSEUPS: Payout Mechanism from a Vintage Slot Machine
CONTINUITY: Fifty Years Ago—The First Commercial Video Game
50 years ago, in October 1971, the first commercial video game made its debut. And no, we're not talking Pong. https://t.co/7s1PEhREbP
— American Experience (@AmExperiencePBS) October 14, 2021
Here is a game play video.
THE HAPPENING WORLD: Space Tourism Companies Prohibit Passengers from Selling Souvenirs
Commercial spaceflight companies set limits on carry-ons: souvenirs not for sale: https://t.co/eZRogAuCt5 pic.twitter.com/0Me3UT7PdR
— collectSPACE (@collectSPACE) October 12, 2021
“Commercial space” for vendors, not customers.
CONTINUITY: How Photolithography Works—Part 6: Resolution Enhancement
The ultimate limit on the feature size photolithography can produce is set by the wavelength of the light it uses and the physics of electromagnetism, but clever device designers have invented a bag of dirty tricks to squeeze more onto a chip. The series concludes with a survey of some of these techniques, including multiple exposure and etching cycles, atomically deposited spacers, self-assembling molecules, and three-dimension stacking of transistors.