orangecrumbs
Loading the deck
Could not load the deck. Check the connection and reload.
Saved
orangecrumbs
✉ Weekly Wikipedia digest

Get new Wikipedia articles popular on Hacker News - one email per week.

No spam. Unsubscribe anytime. · Privacy

✓
You're on the list.A welcome note should arrive in a minute.Check Promotions or Spam if you do not see it.
Full article HN thread
2019 redefinition of the SI base units

2019 redefinition of the SI base units

▲ 85 💬 92

In 2019, four of the seven SI base units specified in the International System of Quantities were redefined in terms of natural physical constants, rather than human artefacts such as the standard kilogram. Effective 20 May 2019, the 144th anniversary of the Metre Convention,…

No items match this view.
Try Shuffle or New.
HN ↗
Loading comments…
List Mode
2019 redefinition of the SI base units
Watch on YouTube

2019 redefinition of the SI base units

↑↓to move·?shortcuts
▲ 85💬 92

In 2019, four of the seven SI base units specified in the International System of Quantities were redefined in terms of natural physical constants, rather than human artefacts such as the standard kilogram. Effective 20 May 2019, the 144th anniversary of the Metre Convention,…

Full article HN thread
Open on HN ↗
Loading comments…
✉ Weekly Wikipedia digest

Get new Wikipedia articles popular on Hacker News - one email per week.

No spam. Unsubscribe anytime. · Privacy

✓
You're on the list.A welcome note should arrive in a minute.Check Promotions or Spam if you do not see it.

Sort & filter

Sort
🔀 Shuffle
🕑 New
Upvotes
20+
50+
100+
200+
Type
All
Article
List