![Deutsches Museum on Twitter: "Technical milestone: 57 years ago Theodore Maiman switched on the first laser. We've got a piece of an early model of his in our collection. https://t.co/mJHikYY69T" / Twitter Deutsches Museum on Twitter: "Technical milestone: 57 years ago Theodore Maiman switched on the first laser. We've got a piece of an early model of his in our collection. https://t.co/mJHikYY69T" / Twitter](https://pbs.twimg.com/media/C_8rBBXUAAEbyed.jpg)
Deutsches Museum on Twitter: "Technical milestone: 57 years ago Theodore Maiman switched on the first laser. We've got a piece of an early model of his in our collection. https://t.co/mJHikYY69T" / Twitter
![The International Day of Light: A Celebration of Photonics and the Transformative Power of Lasers – Power Technology, Inc. The International Day of Light: A Celebration of Photonics and the Transformative Power of Lasers – Power Technology, Inc.](https://www.powertechnology.com/wp-content/uploads/Anh-lich-su-khoa-hoc.jpg)
The International Day of Light: A Celebration of Photonics and the Transformative Power of Lasers – Power Technology, Inc.
![Scientist and inventor of the laser Dr. Theodore Maiman pours liquid nitrogen into a cooling unit around one of the first experimental lasers in his laboratory in Santa Monica, Calif., on March Scientist and inventor of the laser Dr. Theodore Maiman pours liquid nitrogen into a cooling unit around one of the first experimental lasers in his laboratory in Santa Monica, Calif., on March](https://c8.alamy.com/comp/2NGJ15T/scientist-and-inventor-of-the-laser-dr-theodore-maiman-pours-liquid-nitrogen-into-a-cooling-unit-around-one-of-the-first-experimental-lasers-in-his-laboratory-in-santa-monica-calif-on-march-9-1964-ap-photo-2NGJ15T.jpg)
Scientist and inventor of the laser Dr. Theodore Maiman pours liquid nitrogen into a cooling unit around one of the first experimental lasers in his laboratory in Santa Monica, Calif., on March
![𝙈𝙧 𝙋𝙖𝙪𝙡 𝙒𝙖𝙡𝙠𝙚𝙧 on Twitter: "#OnThisDay in 1967, American physicist Theodore Maiman was awarded the patent for his ruby laser systems, the worlds first laser. https://t.co/GUfdPemWZ0" / Twitter 𝙈𝙧 𝙋𝙖𝙪𝙡 𝙒𝙖𝙡𝙠𝙚𝙧 on Twitter: "#OnThisDay in 1967, American physicist Theodore Maiman was awarded the patent for his ruby laser systems, the worlds first laser. https://t.co/GUfdPemWZ0" / Twitter](https://pbs.twimg.com/media/Dr9ixQCUwAAPsud.jpg)