Webb’s Journey to L2 Is Nearly Complete - https://blogs.nasa.gov/webb/2022/01/21/webbs-journey-to-l2-is-nearly-complete/
An absolutely amazing article about how GPS works. It's a great achievement to visually explain things so well on the web. (most likely needs a modern browser) https://ciechanow.ski/gps/
with a little high pass filtering the signal is much more visible
I feel like a broken record, but the #Tonga explosion passed again last night over the Mediterranean and, although softened, it's still well recognizable!
You can see all three events on the plot.
#Tonga volcano explosion reloaded: 36h and another tour around the Earth later the pressure wave reappeared in Sardinia today. Yeah, 36h X 1100km/h = 40.000km
Find out how good you are at placing historical events in the right order with this cool new game based on Wikidata's data:
This is awesome!
and the end of the blast coming in from the ~south
Tonga is 16.000km away from Sardinia, 24.000 away going "the long way". So the blast, traveling at 1100km/h, lasted ~7 hours. And towards the end, the wave front was surely coming from the South direction.
Two barometers in Sardinia 50km apart (N-S) detect the first blast with ~2 minutes of delay: the wave front came first from the North-NW direction.
Tonga’s explosive volcanic eruption seen from even further out in space 😱
#Tonga volcano explosion at 20.30 UTC (21.30 local time) as received with my backyard barometer in Sardinia.
Decoding James Webb Space Telescope - https://destevez.net/2021/12/decoding-james-webb-space-telescope/
You block ads in your browser, why not in your city? - https://bearbin.net/blog/2021/adblock-your-city
How to Develop BW Film at Home with Coffee - https://www.fieldmag.com/articles/how-to-develop-film-with-coffee-caffenol-guide
basically, I love trying to understand how nature works, be it with math, models, computer code or at an irrational level.