Engineering

2603 topics in this forum

1. RC network with voltage gain

   By Enthalpy, January 9, 2019
   • 2 replies
   • 2.7k views
   • 
   • Enthalpy
   • March 6, 2019

2. Are ground source heat pumps reversible, for heat storage?

   By Ken Fabian, January 5, 2019
   • 24 replies
   • 2.5k views
   • 
   • Akmose
   • March 4, 2019

3. Interplanetary/Interstellar Travel

   By Nod2003, February 23, 2019
   • 11 replies
   • 1.8k views
   • 
   • Moontanman
   • February 25, 2019

4. Portable Electric Freezer Bag

   By Johnrocks, February 19, 2019
   • 7 replies
   • 1.4k views
   • 
   • Johnrocks
   • February 24, 2019

5. grams (or kg) of neodymium

   By Fans, January 30, 2019
   • 7 replies
   • 1.5k views
   • 
   • John Cuthber
   • February 18, 2019

6. Hydraulic/pneumatic amplification, Pascal principle...

   By Externet, February 18, 2019
   • 0 replies
   • 647 views
   • 
   • Externet
   • February 18, 2019

7. How PDAF Works?

   By Carl Fredrik Ahl, January 31, 2019
   • 1 reply
   • 1.4k views
   • 
   • CharonY
   • February 1, 2019

8. Smart Watch Ambient Mode

   By Carl Fredrik Ahl, January 30, 2019
   • 0 replies
   • 673 views
   • 
   • Carl Fredrik Ahl
   • January 30, 2019

9. Volcanic power?

   By ScienceNostalgia101, October 25, 2018
   • 8 replies
   • 2.2k views
   • 
   • Nod2003
   • January 27, 2019

10. Why Under-Display Fingerprint Sensors Require OLED?

    By Carl Fredrik Ahl, January 23, 2019
    • 3 replies
    • 839 views
    • 
    • Carl Fredrik Ahl
    • January 24, 2019

11. An electron-hole supercapacitor

    By Moreno, January 16, 2019
    • 9 replies
    • 1.3k views
    • 
    • Moreno
    • January 22, 2019

12. Urethane Covered Bearings Load Ratings

    By nick22, January 22, 2019
    • 0 replies
    • 614 views
    • 
    • nick22
    • January 22, 2019

13. Automatic voltage stabilizer repair

    By blessingarena, January 16, 2019
    • 0 replies
    • 669 views
    • 
    • blessingarena
    • January 16, 2019

14. Is there a way to convert the earth’s magnetic field into usable electricity? 1 2

    By DARK0717, December 27, 2018
    • 47 replies
    • 5.3k views
    • 
    • DARK0717
    • January 13, 2019

15. CAN there be too many engineers?

    By ScienceNostalgia101, September 11, 2018
    • 23 replies
    • 3.2k views
    • 
    • Will9135
    • January 13, 2019

16. Does AC make frequencies?

    By DARK0717, December 21, 2018
    • 5 replies
    • 1.3k views
    • 
    • tinkerer
    • January 8, 2019

17. A safe propane storage? 1 2

    By Moreno, October 4, 2017
    • 32 replies
    • 5.3k views
    • 
    • tinkerer
    • January 7, 2019

18. Zinc-air rechargeable battery

    By Moreno, December 31, 2018
    • 0 replies
    • 987 views
    • 
    • Moreno
    • December 31, 2018

19. A Star Trek like engine....

    By Phantom5, December 25, 2018
    • 1 reply
    • 807 views
    • 
    • swansont
    • December 25, 2018

20. When you want fly so fast as you want in the air

    By Phantom5, December 25, 2018
    • 0 replies
    • 687 views
    • 
    • Phantom5
    • December 25, 2018

21. Solar sails, bits and pieces

    By Enthalpy, August 25, 2013
    • 16 replies
    • 7.2k views
    • 
    • Enthalpy
    • December 25, 2018

22. Exergy concept

    By Jacqbue, December 23, 2018
    • 1 reply
    • 1.1k views
    • 
    • quiet
    • December 23, 2018

23. Regenerative Braking System

    By musa1236, December 21, 2018
    • 0 replies
    • 639 views
    • 
    • musa1236
    • December 21, 2018

24. How to apply high voltage and high frequencies?

    By DARK0717, December 18, 2018
    • 10 replies
    • 1.5k views
    • 
    • DARK0717
    • December 21, 2018

25. How Engine Braking Works

    By Carl Fredrik Ahl, November 29, 2018
    • 15 replies
    • 1.7k views
    • 
    • Carl Fredrik Ahl
    • December 19, 2018