Trying Out The First "Laser" Pointer - Ednalite 120A Projection Pointer
8:27
YouTubesaveitforparts
Trying Out The First "Laser" Pointer - Ednalite 120A Projection Pointer
I found this strange "laser" gadget at the local university surplus store, so I decided to review it! It's not truly a laser, just a high-powered light bulb with focusing optics. It projects a small arrow onto a wall (or whiteboard, or map, etc) This is what professors or presenters would use in the days before ...
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短編
Man arrested for pointing laser at King County Sheriff's helicopter
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Man arrested for pointing laser at King County Sheriff's helicopter
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physicsfun on Instagram: "The PhoTOP: quantum illumination fun with phosphorescent glow tracing the intricate path of a 405nm laser pointer beam on a balanced spinning disk. Let the disk set alone for a few minutes to allow the traces to fade- and repeat again and again to experiment making new patterns. Another piece of mesmerizing interactive kinetic art from the mind of Prof. Ken Brecher. ➡️ Follow the link in my profile for info on where to get a PhoTOP and many other amazing items featured
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physicsfun on Instagram: "The PhoTOP: quantum illumination fun with phosphorescent glow tracing the intricate path of a 405nm laser pointer beam on a balanced spinning disk. Let the disk set alone for a few minutes to allow the traces to fade- and repeat again and again to experiment making new patterns. Another piece of mesmerizing interactive kinetic art from the mind of Prof. Ken Brecher. ➡️ Follow the link in my profile for info on where to get a PhoTOP and many other amazing items featured
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Do you think the balloon is strong, or is our laser pen powerful? see here:https://goo.gl/7MTyTR Watch the video and you will know. Break the balloon in minutes | LaserPointerPro | Facebook
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