Engineering

2569 topics in this forum

1. Air Trecks 1 2 3 4 9

   By Jon13, March 26, 2008
   • 200 replies
   • 145.6k views
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   • tisonneo
   • August 16, 2023

2. Gravity as an energy source? 1 2 3 4 8

   By X facter, February 11, 2006
   • 191 replies
   • 84.1k views
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   • Strange
   • March 29, 2017

3. The space program we have is a joke 1 2 3 4 6

   By nec209, November 24, 2010
   • 148 replies
   • 16.5k views
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   • zapatos
   • February 12, 2011

4. OceanGate Submersible Goes Missing During Titanic Dive 1 2 3 4 6

   By toucana, June 20, 2023
   • 143 replies
   • 8k views
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   • mistermack
   • September 15, 2023

5. Energy, Cost and Subsidy in Power Production 1 2 3 4 6

   By NortonH, February 28, 2018
   • 125 replies
   • 9.2k views
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   • ydoaPs
   • March 2, 2018

6. Tesla Coil 1 2 3 4 5

   By 5614, September 19, 2004
   • 120 replies
   • 17.1k views
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   • YT2095
   • November 12, 2004

7. 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

8. Fire in Notre Dame in Paris 1 2 3 4 5

   By Airbrush, April 15, 2019
   • 115 replies
   • 13.1k views
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   • John Cuthber
   • August 27, 2019

9. F/A-22 Raptor vs Su-43 Berkut 1 2 3 4 5

   By AtomicMX, June 15, 2004
   • 114 replies
   • 28.5k views
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   • AtomicMX
   • June 22, 2005

10. A/C for Room Virus Removal 1 2 3 4 5

    By Airbrush, April 27, 2020
    • 114 replies
    • 296.5k views
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    • Voltas Engineering
    • October 4, 2022

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

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

12. Battleship revival? 1 2 3 4

    By Moontanman, April 10, 2021
    • 88 replies
    • 9.7k views
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    • SergUpstart
    • July 23, 2022

13. Battery-free flash light 1 2 3 4

    By Lance, August 22, 2004
    • 87 replies
    • 12.6k views
    • 
    • cchea
    • January 18, 2006

14. GPS positioning systems. 1 2 3 4

    By Handy andy, May 5, 2017
    • 85 replies
    • 8.3k views
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    • Klaynos
    • May 21, 2017

15. Solar Thermal Rocket 1 2 3 4

    By Enthalpy, June 20, 2013
    • 84 replies
    • 29.3k views
    • 
    • Enthalpy
    • August 15, 2021

16. Helium car tires 1 2 3 4

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

17. 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

18. Need some evidences from other disciplines about >3D space 1 2 3 4

    By blue89, September 6, 2016
    • 75 replies
    • 5.5k views
    • 
    • Klaynos
    • September 7, 2016

19. Rods of God 1 2 3

    By Cap'n Refsmmat, January 6, 2004
    • 73 replies
    • 9.7k views
    • 
    • Sayonara
    • February 1, 2004

20. Movement of a piston 1 2 3

    By JustinW, January 5, 2012
    • 71 replies
    • 8.4k views
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    • TonyMcC
    • January 13, 2012

21. How do you reduce voltage and make a current last longer? 1 2 3

    By MWresearch, August 9, 2015
    • 71 replies
    • 8k views
    • 
    • Strange
    • August 30, 2015

22. Is going to space really going to be a pipe dream and for scfi due to this? 1 2 3

    By nec209, March 9, 2010
    • 67 replies
    • 7.5k views
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    • InigoMontoya
    • April 23, 2010

23. Future of self-driving automobiles... 1 2 3

    By Externet, January 6, 2017
    • 67 replies
    • 6.6k views
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    • Bender
    • January 26, 2017

24. to patent and some extraordinary approaches.unfortunately need help. 1 2 3

    By blue89, November 2, 2016
    • 66 replies
    • 6.8k views
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    • swansont
    • November 4, 2016

25. Viability of Solar Power 1 2 3

    By mmalluck, February 3, 2005
    • 62 replies
    • 17.4k views
    • 
    • lemur
    • May 31, 2011