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mastouille.fr est l'un des nombreux serveurs Mastodon indépendants que vous pouvez utiliser pour participer au fédiverse.
Mastouille est une instance Mastodon durable, ouverte, et hébergée en France.

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The Krononaut Moon Project 🌑

#NIST — The #NationalInstitutes of #Standards & #Technology

…❛❛ #Cesium #fountain #clocks are the most accurate & stable operational clocks the world has ever seen. The best are so good that if one had been running since the time of the #dinosaurs, it would have lost or gained less than 1 second. These are the clocks used to realize the official #second ❜❜…

🔗 nist.gov/atomic-clocks/how-do- 21 Oct 2024
🔗 mstdn.social/@reshmi/113358574 23 Oct 2024
🔗 Wikipedia.org/wiki/Time_standa

NIST · How Do We Know What Time It Is?
#Community#TimeTravel#Research
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DoomsdaysCW

What’s being done now about #RadioactiveWater that threatens the #ColumbiaRiver in #WashingtonState?

by Annette Cary
Tue, July 9, 2024

"A major #radioactive contamination threat to the Columbia River should be removed at the #Hanford #nuclear site before the end of summer.

"Hanford workers have started to pump contaminated water from the final basin of the nuclear reservation’s nine reactors along the Columbia River.

"'This effort will eliminate the risk of a leak of contaminated water to the groundwater about a quarter-mile from the Columbia River,' said Andy Wiborg, the Department of Energy acting deputy assistant manager for river and plateau cleanup."

[...]

"The K West and K East Reactor basins were the last to be used, after storing irradiated fuel from N Reactor that was not processed following the end of the Cold War. Before the fuel was removed in 2004, it #corroded underwater, contributing to a highly #RadioactiveSludge.

"In 2019 the last of the sludge was removed, leaving draining the water the next major task to reduce risk from the basins.

"The nearby K East Reactor basin was emptied first.

"Then in June, the first tanker truck with basin water pulled away from the K West Reactor.
About 60 tanker trucks have been filled with filtered water to remove radioactive contamination from the K West Reactor basin as it is being drained. The work will protect the nearby Columbia River.
About 60 tanker trucks have been filled with filtered water to remove radioactive contamination from the K West Reactor basin as it is being drained. The work will protect the nearby Columbia River.

"About 400,000 gallons have been pumped out of the basin so far, which is the equivalent of six residential swimming pools, said Heather Dale, DOE Hanford assistant manager for the river and plateau. About 60 tanker trucks have been filled with basin water.

[...]

"They also installed a system to pump out and then filter the contaminated water before it it loaded into tanker trucks.

"The filtering system removes particles and also uses an ion exchange system to remove radioactive #cesium and #strontium from the water. The initial resin used in the ion exchange system DID NOT WORK WELL, the Defense Nuclear Facilities Safety Board said in January.

[...]

"Some of the contents of the vertical pipe units in the K West Reactor basin may be required to be sent to the nation’s repository for transuranic radioactive waste in New Mexico for disposal [#WIPP].

Read more:
news.yahoo.com/news/being-done

#WaterIsLife
#NoNukes
#NoDumping
#FutureGenerations
#NoWar
#NoNuclearWeapons
#RethinkNotRestart
#NuclearWaste
#HanfordNuclearSite

Yahoo News · What’s being done now about radioactive water that threatens the Columbia River in WA?Par Annette Cary
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偉吉

@jbryant and @nyalld presenting on #QGIS Feature Frenzy

- User fonts & freely licensed fonts
- @postgis awesomeness: Auth, Notify, parallel load
- Point cloud 2D/3D viewer. LAZ/EPT/#COPC, ... Virtual point clouds, Elevation profile
- #Cesium 3D tiles
- #CloudOptimizedGeoTIFF in the cloud (with auth)
- Vector tile basemaps
- Annotation layers
- HTML in labels
- qgis_process headless CLI, or in R
- Reworked GPS support
- Editable ArcGIS REST layers/GDB

What's next?!

#FOSS4GOceania2023 @qgis

John and Nyall giving their talk!
Point cloud features.
3D measurement tool measuring building height.
qgis_process command-line tool to run QGIS functions in headless mode!
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DoomsdaysCW

Highly Radioactive Leak At Hanford Came From Spent Fuel Experiments

July 1, 2023

"A recent admission that contaminated soil at the 324 Building at the #Hanford National Lab site was much worse than previously estimated raised concerns this week. A ballpark conversion of the radiation level cited in the article was roughly 1,780 sieverts per hour.

"How did this defunct building at Hanford end up with such #radioactive soil contamination beneath it? The 324 Building housed hot labs including the B Cell. This large hot lab did various experiments including using liquified highly radioactive #Strontium 90 and #cesium 137 extracted from high burnup spent #nuclear fuel. This highly radioactive liquid was used in vitrification experiments, a technology to isolate nuclear waste. The B Cell had a history of spills, fires and equipment failures that lead to significant contamination of the facility and ground beneath it.

"The Department of Energy cites that the waste sump for this hot cell was found to have a breach in it that likely allowed waste to leak out of the facility. There also was a history of spills of this highly radioactive liquid extract of spent fuel."

simplyinfo.org/2023/07/highly-

SimplyInfo.orgHighly Radioactive Leak At Hanford Came From Spent Fuel ExperimentsI recent admission that contaminated soil at the 324 Building at the Hanford National Lab site was much worse than previously estimated raised concerns this wee
#WaterIsLife#ColumbiaRiver#WashingtonState
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