3 ms·

Wow, I never really realized how good our current chemical battery technology is at being extremely dense.

• dwaltrip 8y ago
  Our battery tech is pretty impressive. However, this is also a clear example of how weak of a force gravity is, comparatively. One simple demonstration is to look at how a small magnet can combat the gravity of the entire planet when it holds an metal object in place above the ground.
• noir_lord 8y ago
  Decades of incremental small percentage gains really adds up in overall terms.
  • deleted 8y ago
    [deleted]
• dredmorbius 8y ago
  Relative to kinetic/gravity storage, yes. Relative to combustibles such as hydrocarbons, ammonia, or hydrogen, not so much. (It's possible to synthesize carbon-neutral hydrocarbons, though with high round-trip losses, and not yet proved at scale.)