Engineering

2569 topics in this forum

1. Man moves huge blocks easily with no heavy equipment.

   By EdEarl, December 7, 2016
   • 11 replies
   • 12.4k views
   • 
   • AbstractDreamer
   • December 9, 2016

2. Staged Combustion Rocket Engines

   By Enthalpy, January 7, 2014
   • 3 replies
   • 12.3k views
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   • Enthalpy
   • December 5, 2014

3. Which energy source is going to replace Petroleum??! 1 2 3 4 5

   By bablunicky, May 28, 2013
   • 117 replies
   • 12.2k views
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   • ralfy
   • September 11, 2013

4. Coin Toss Machine 1 2

   By Phi for All, May 8, 2017
   • 42 replies
   • 12.2k views
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   • Bender
   • July 20, 2017

5. Helium car tires 1 2 3 4

   By NimrodTheGoat, April 24, 2018
   • 80 replies
   • 12k views
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   • John Cuthber
   • June 8, 2018

6. Reasons to not implement gravity on ISS ? 1 2

   By Externet, March 15, 2019
   • 36 replies
   • 12k views
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   • Janus
   • September 26, 2019

7. Cars running on magnets?

   By dstebbins, November 4, 2011
   • 9 replies
   • 11.7k views
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   • michel123456
   • November 7, 2011

8. Pyramids? How? 1 2 3

   By Adrian, July 22, 2002
   • 51 replies
   • 11.7k views
   • 
   • zorro
   • March 2, 2012

9. lighter than air ship using vacuum instead of gas 1 2

   By lemur, April 22, 2011
   • 36 replies
   • 11.4k views
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   • Ken Fabian
   • September 26, 2022

10. Audio/video lectures on electronics and electrical engineering

    By seouldavid, October 31, 2009
    • 10 replies
    • 11.4k views
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    • Lynda
    • October 30, 2010

11. Senior project ideas wanted!

    By xDiViNiTix, April 21, 2006
    • 17 replies
    • 11.3k views
    • 
    • swansont
    • September 10, 2015

12. Robots 1 2

    By michel123456, November 5, 2011
    • 31 replies
    • 11.2k views
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    • michel123456
    • July 27, 2020

13. thermoelectric peltier vs solar cell/panel

    By otivaeey, August 2, 2006
    • 7 replies
    • 11.1k views
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    • Rocket Man
    • August 7, 2006

14. electric garden carts

    By Norman Albers, January 8, 2007
    • 24 replies
    • 11k views
    • 
    • Norman Albers
    • September 6, 2007

15. Automotive engine for an electric generator? 1 2

    By Pleiades, March 14, 2006
    • 41 replies
    • 10.8k views
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    • visittokiran
    • April 5, 2008

16. The end of gasoline/diesel powered cars? 1 2 3 4 5

    By Moreno, December 6, 2018
    • 103 replies
    • 10.8k views
    • 
    • Moreno
    • July 8, 2019

17. Ranque-Hilsch vortex tube and golden spiral?

    By THX-1138, November 26, 2010
    • 4 replies
    • 10.7k views
    • 
    • THX-1138
    • June 29, 2013

18. Better Black Boxes on Airliners 1 2 3

    By Airbrush, March 21, 2014
    • 60 replies
    • 10.7k views
    • 
    • Enthalpy
    • October 1, 2015

19. How to calculate the pressure ratio of a fan ?

    By kemo1988, April 29, 2010
    • 19 replies
    • 10.7k views
    • 
    • kemo1988
    • May 7, 2010

20. Winch on horizontal or vertical ?

    By Externet, December 24, 2011
    • 5 replies
    • 10.6k views
    • 
    • InigoMontoya
    • December 25, 2011

21. pressure increasing valve?

    By Guest sean83, October 17, 2003
    • 4 replies
    • 10.6k views
    • 
    • JaKiri
    • October 17, 2003

22. Why does holding a pistol sideways like in the movies not really work?

    By Fanghur, June 4, 2012
    • 15 replies
    • 10.6k views
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    • InigoMontoya
    • June 5, 2012

23. The end of nuclear energy 1 2 3 4

    By Realitycheck, May 12, 2011
    • 77 replies
    • 10.5k views
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    • Brainteaserfan
    • July 4, 2011

24. Solar Powered Hang-Glider (idea) 1 2

    By Guest mobius1, October 3, 2004
    • 25 replies
    • 10.4k views
    • 
    • VictoryKing
    • April 24, 2020

25. magnetic space suit

    By Magnetic Space Suit, August 9, 2010
    • 14 replies
    • 10.3k views
    • 
    • Justwow
    • January 18, 2018