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  • 08:32 Burning stuff with a giant fresnel lens + how a DLP projector works

    Burning stuff with a giant fresnel lens + how a DLP projector works

    193 views / 0 likes - added

    Hey everybody! Ive wanted to make one of these forever. Well, i have made one before but it was not a 'good' fresnel lens. If you want to learn more about fresnel lenses this is a good website - https://rimstar.org/equip/fresnel_lens.htm They have a youtu

  • 05:03 Pepper's Ghost on Smartphone

    Pepper's Ghost on Smartphone

    195 views / 0 likes - added

    Pepper's ghost on a smartphone/mobile, including how to make it and demonstrations with Star Wars AT-AT Imperial Walkers and ghosts.This video was made possible in part by these Patreon supporters:Jonathan RiekeJames PaddenPrintable ScienceSupport Rimstar

  • 03:09 Potato chip circuit/macrochip with 555 timer circuit

    Potato chip circuit/macrochip with 555 timer circuit

    188 views / 0 likes - added

    A fun circuit on a potato chip, sort of a DIY microchip or macrochip, using a 555 timer circuit.This video was made possible in part by these Patreon supporters:Jonathan RiekePrintable ScienceSupport RimstarOrg on Patreon https://www.patreon.com/user?u=68

  • 07:18 What is Electricity: AC v DC, Electrostatic, Lightning, Arcs, Sparks

    What is Electricity: AC v DC, Electrostatic, Lightning, Arcs, Sparks

    167 views / 0 likes - added

    What is electricity? How does electricity work? There are many forms of electricity:AC, DC, electrostatic, sparks, arcs, gas discharge and corona discharge, but all are variations of the same principle. This video goes through them all.This is an improved

  • 05:57 How to Make Pinhole Camera with Poster Board

    How to Make Pinhole Camera with Poster Board

    263 views / 0 likes - added

    Here's a cheap and easy way to make a pinhole camera using a single sheet of poster board. This is great for if you need to make a few or lots of them cheaply, great for a kids activity.This video was made possible in part by these Patreon supporters:Mark

  • 10:36 Moving Things With SoundHelmholtz Resonance Propulsion

    Moving Things With SoundHelmholtz Resonance Propulsion

    47 views / 0 likes - added

    Install Raid for Free IOS/ANDROID/PC: https://clcr.me/Raid_TheActionLab and get a special starter pack Available only for the next 30 daysIn this video I show you how to make a Helmholtz resonator that actually moves. I talk about the physics behind why a


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