Uploaded November 2019 | Updated September 2026, 2 weeks ago
In this video I explore the physics of an 'invisibility shield', otherwise known as a Lubor's Lens. You may have seen viral clips of this type of material attached to a riot shield, advertised for police and military applications to provide an effective (but not perfect) cloak in certain environments. This video explores how that technology works.
You can purchase your own Lubor's Lenses here (this is an affiliate link): ebay.to/2KGaCCn
It's thanks to viewers like you supporting me on Patreon that I'm able to continue making videos and strive to constantly improve them. Thank you so much for your support, and a special thanks to my top Patrons: Enzo Breda Lee & TheBackyardScientist!
patreon.com/NightHawkProjects
Thanks for watching!
-Ben
In this video I explore the physics of an 'invisibility shield', otherwise known as a Lubor's Lens. You may have seen viral clips of this type of material attached to a riot shield, advertised for police and military applications to provide an effective (but not perfect) cloak in certain environments. This video explores how that technology works.
You can purchase your own Lubor's Lenses here (this is an affiliate link): ebay.to/2KGaCCn
It's thanks to viewers like you supporting me on Patreon that I'm able to continue making videos and strive to constantly improve them. Thank you so much for your support, and a special thanks to my top Patrons: Enzo Breda Lee & TheBackyardScientist!
patreon.com/NightHawkProjects
Thanks for watching!
-Ben
![How To Make Rope From Grass [Easy Method] - NightHawkInLight](https://i.ytimg.com/vi/DljWyRQFrNc/mqdefault.jpg "How To Make Rope From Grass [Easy Method] - NightHawkInLight
Rope is one of the most valuable items to have in the wilderness, and this ancient method of creating it produces very good results. Even today some commercially made ropes are wound with the same process. Other natural fibers can be used to create rope (some being much stronger than grass), and this method will work equally as well with any other flexible material. Grass does tend to become brittle when dry which could weaken this rope, but even then it does maintain some strength. In moderate humidity weakness from drying should not become an issue at all.
Note that for best results, each of the two tails of the rope should be twisted an equal number of turns as theyre wound. That will ensure that the two coils wind around one another tightly and in a double helix pattern. If one side is twisted less than the other it will tend to stay straight, while the more twisted side coils around it like a spring. When I first started winding the rope in the video you can see I didnt do a very good job twisting both strands evenly for the first few inches, and one side was coiled more than the other. Try to avoid that, as it will be a weak point.
If you would like to support my videos on Patreon it would be greatly appreciated! You can view my page and make a pledge here: https://www.patreon.com/NightHawkProjects?ty=h
#NightHawkInLight
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Check out my latest video: How To View Invisible Air Currents With Lasers
https://www.youtube.com/watch?v=K94Cc21KEIA
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