Projects

199 topics in this forum

1. Battery/LED challenge. play if you dare! 1 2 3 4

   By YT2095, February 7, 2004
   • 88 replies
   • 62.5k views
   • 
   • Spyman
   • June 11, 2012

2. the Great Solar "Cookoff" Challenge :)) 1 2

   By YT2095, May 9, 2004
   • 26 replies
   • 25.4k views
   • 
   • yojojo12
   • June 11, 2012

3. The Great Lightbulb Challenge!

   By YT2095, February 28, 2007
   • 17 replies
   • 17.5k views
   • 
   • Plasmick
   • August 27, 2018

4. Tell us about your projects and your plans.

   By woelen, April 4, 2007
   • 0 replies
   • 12.8k views
   • 
   • woelen
   • April 4, 2007

5. Experiment: Pit Bull Interaction & Attack Poll 1 2 3 4 15

   By iNow, October 1, 2007
   • 356 replies
   • 62k views
   • 
   • Phi for All
   • April 9, 2008

6. Making heavy water 1 2

   By Curix, September 1, 2007
   • 49 replies
   • 82.1k views
   • 
   • JJR
   • June 5, 2014

7. Why is no one trying to create a UFO-like engine out of superconductors that can levitate in Earth's magnetic field? 1 2

   By Kassander, April 4, 2023
   • 42 replies
   • 5.2k views
   • 
   • Kassander
   • April 7, 2023

8. Vacuum Balloon! 1 2

   By coreview2, April 25, 2008
   • 42 replies
   • 22.1k views
   • 
   • padren
   • November 24, 2008

9. My pool leaks. How do I find the leak? 1 2

   By Genady, January 15
   • 42 replies
   • 1.9k views
   • 
   • Genady
   • January 18

10. to send something to space! 1 2

    By aviv8, April 28, 2007
    • 36 replies
    • 9.6k views
    • 
    • Phi for All
    • June 22, 2007

11. The Nature Of SpaceTime 1 2

    By PrimalMinister, December 15, 2024
    • 26 replies
    • 1.6k views
    • 
    • Phi for All
    • January 2

12. Sending something to the Moon

    By mot1on, October 11, 2007
    • 22 replies
    • 18.9k views
    • 
    • Andredi
    • September 11, 2021

13. Liquid Nitrogen

    By falcon9393, May 15, 2008
    • 21 replies
    • 6.2k views
    • 
    • alan2here
    • September 24, 2008

14. Challenge

    By Oldone, August 26, 2007
    • 20 replies
    • 5.7k views
    • 
    • Rocket Man
    • September 22, 2007

15. Building Project

    By trevorSCHOOL, February 7, 2014
    • 20 replies
    • 5.9k views
    • 
    • trevorSCHOOL
    • March 13, 2014

16. Roget's Spiral

    By rktpro, June 6, 2011
    • 19 replies
    • 10k views
    • 
    • rktpro
    • June 28, 2014

17. Passive air conditioner will it work?

    By random, May 10, 2011
    • 19 replies
    • 8.1k views
    • 
    • Externet
    • September 11, 2011

18. Powdered Neodymium Magnets?

    By recursive, November 20, 2007
    • 17 replies
    • 21.1k views
    • 
    • mississippichem
    • November 22, 2010

19. Nazi Mile Wide Mirror in Outerspace

    By Joshcitylife, July 27, 2022
    • 16 replies
    • 2.9k views
    • 
    • swansont
    • August 1, 2022

20. My electronics and/or Arduino projects.

    By Klaynos, August 7, 2017
    • 16 replies
    • 4.1k views
    • 
    • John Cuthber
    • March 21, 2018

21. And I half expected it to be made of wood...

    By big314mp, September 18, 2008
    • 15 replies
    • 4.9k views
    • 
    • Sisyphus
    • May 26, 2009

22. Does the project shown in this video work? And if so, is it safe?

    By Maniacal Doodler, June 3, 2023
    • 15 replies
    • 2.2k views
    • 
    • xkalibur08
    • June 20, 2023

23. Solar Powered Hydrogen Engine

    By Joshcitylife, July 22, 2022
    • 14 replies
    • 2.6k views
    • 
    • Joshcitylife
    • July 24, 2022

24. Building a robotic flower

    By falcon9393, May 11, 2009
    • 13 replies
    • 5.9k views
    • 
    • Theophrastus
    • July 13, 2009

25. It's About Trash

    By FHP, October 10, 2019
    • 12 replies
    • 3.8k views
    • 
    • mistermack
    • October 16, 2019