Notes concerning “Lasers”

• Phosphorescent laser display 2016-08-16 (8 minutes)
• Digital logic with lasers, induced X-ray emission, and neutron-induced fission, for femtosecond switching times? 2016-09-06 (3 minutes)
• Data archival on gold leaf or Mylar with DVD-writer lasers or sparks 2018-04-27 (5 minutes)