this post was submitted on 17 May 2024
7 points (88.9% liked)

Mechanical Engineering

198 readers
16 users here now

Welcome to the Mechanical Engineering Community!

Rules:

1.) Be constructive and respectful.

2.) No advertising/self-promotion.

3.) No low-effort posts.

4.) No "design this for me" posts.

5.) Images must be relevant to Mechanical Engineering or the posted topic.

6.) We're not doing your homework for you.

founded 1 year ago
MODERATORS
 

Crosspost from the "Energy" Community. Seemed too good not to put here.

top 3 comments
sorted by: hot top controversial new old
[–] Sendpicsofsandwiches 3 points 3 months ago

Sand battery sounds like something someone would call me in a call of duty lobby

[–] [email protected] 1 points 3 months ago (1 children)
[–] [email protected] 2 points 3 months ago

That's a good article. Ten times less efficient than a chemical battery, but 10 times cheaper, and the only component that ever needs to be replaced is a cheap fan that pumps the air through the battery.