Almost 30 years have gone by and we still don't have a practical magnetohydrodynamic propulsion system yet. https://en.wikipedia.org/wiki/Yamato_1
Replying to @novysan
On the plus side I can leave my garden doors open all day and not a single insect comes in. I suppose that most tangible progress is now unintentional
12:58 PM - 7 Apr 2019
from Palo Alto, CA
0 replies
0 retweets
3 likes
Loading seems to be taking a while.
Twitter may be over capacity or experiencing a momentary hiccup. Try again or visit Twitter Status for more information.