530
Sometimes with a very minor change to make it patentable again.
(startrek.website)
1. Be civil
No trolling, bigotry or other insulting / annoying behaviour
2. No politics
This is non-politics community. For political memes please go to !politicalmemes@lemmy.world
3. No recent reposts
Check for reposts when posting a meme, you can only repost after 1 month
4. No bots
No bots without the express approval of the mods or the admins
5. No Spam/Ads
No advertisements or spam. This is an instance rule and the only way to live.
"chemically similar"
Ffs, chirality is just one example of chemicals that are "similar" but that can have very different effects. Thalidimide is one example where a molecule was useful for morning sickness in pregnant women, but its mirror image molecule caused birth defects.