Engineering

2602 topics in this forum

1. Idea for a rocket engine

   By ALine, June 19, 2019
   • 10 replies
   • 2.7k views
   • 
   • cannongray
   • April 28, 2021

2. question: how fast do electrons accumulate at the negative end of the battery lead

   By ALine, April 27, 2021
   • 8 replies
   • 1.2k views
   • 
   • ALine
   • April 27, 2021

3. A rather unique idea to room cooling (radiant cooling + peltier array)

   By markg85, February 27, 2021
   • 6 replies
   • 1.3k views
   • 
   • markg85
   • April 27, 2021

4. Gas Generator Cycle for Rocket Engines - Variants

   By Enthalpy, April 27, 2014
   • 14 replies
   • 8.9k views
   • 
   • Enthalpy
   • April 18, 2021

5. Armstrong drive? Possible propulsion

   By Lorenzo A., April 14, 2021
   • 3 replies
   • 1.1k views
   • 
   • J.C.MacSwell
   • April 14, 2021

6. Electric helicopter

   By Enthalpy, May 25, 2013
   • 15 replies
   • 7.1k views
   • 
   • Enthalpy
   • April 7, 2021

7. LIDAR vs RADAR in the rain

   By Ericchiriboga, April 3, 2021
   • 2 replies
   • 984 views
   • 
   • swansont
   • April 3, 2021

8. Heating in electric vehicles.

   By studiot, March 19, 2021
   • 8 replies
   • 2k views
   • 
   • Bond777
   • March 31, 2021

9. What is your attitude towards Driving Anger?---An interesting topic I saw from a research article in an OA journal

   By lulu2021, March 30, 2021
   • 15 replies
   • 1.3k views
   • 
   • zapatos
   • March 30, 2021

10. Exotic Pumping Cycles for Rocket Engines

    By Enthalpy, May 8, 2014
    • 4 replies
    • 7k views
    • 
    • Enthalpy
    • March 28, 2021

11. SpaceX rocket landings

    By DrP, July 25, 2020
    • 9 replies
    • 2k views
    • 
    • Enthalpy
    • March 23, 2021

12. Rocket Engine Igniter

    By Enthalpy, March 23, 2021
    • 0 replies
    • 705 views
    • 
    • Enthalpy
    • March 23, 2021

13. Solar dreams

    By To_Mars_and_Beyond, March 20, 2021
    • 4 replies
    • 1.2k views
    • 
    • swansont
    • March 21, 2021

14. Merging Inventions

    By Photon Guy, March 19, 2021
    • 2 replies
    • 832 views
    • 
    • Phi for All
    • March 19, 2021

15. Going Electric

    By Photon Guy, March 12, 2021
    • 15 replies
    • 2.3k views
    • 
    • Danijel Gorupec
    • March 15, 2021

16. DIY "vacuum" plunger food storage jar ?

    By Erina, March 9, 2021
    • 0 replies
    • 684 views
    • 
    • Erina
    • March 9, 2021

17. Can we PRESERVE and HONOUR our DEAD ?  Walker’s Casket ! 1 2

    By Commander, February 22, 2021
    • 39 replies
    • 4.3k views
    • 
    • dimreepr
    • March 4, 2021

18. Which materials does snow not stick to?

    By Bob Jeff, March 1, 2021
    • 5 replies
    • 3k views
    • 
    • iNow
    • March 1, 2021

19. is it possible to harness gravity to power a motor

    By darkmatter11, February 28, 2021
    • 7 replies
    • 1.2k views
    • 
    • Photon Guy
    • March 1, 2021

20. Expansion Cycke Rocket Engines 1 2

    By Enthalpy, March 24, 2014
    • 29 replies
    • 34k views
    • 
    • Enthalpy
    • February 20, 2021

21. Nuclear energy vs. renewable energy 1 2 3

    By ScienceNostalgia101, December 22, 2020
    • 51 replies
    • 107.8k views
    • 
    • npts2020
    • February 20, 2021

22. A pandemic-proof system of food distribution

    By ScienceNostalgia101, February 16, 2021
    • 21 replies
    • 1.9k views
    • 
    • beecee
    • February 16, 2021

23. Storing heat...

    By Externet, December 24, 2020
    • 21 replies
    • 2.6k views
    • 
    • Ken Fabian
    • February 15, 2021

24. What can I use to remove clutch linings from steel ?

    By Tornado220, February 5, 2021
    • 3 replies
    • 1.1k views
    • 
    • Tornado220
    • February 15, 2021

25. Extended life of solid state light emitters...

    By Externet, January 28, 2021
    • 7 replies
    • 1.1k views
    • 
    • swansont
    • February 8, 2021