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Katie Mummah Profile picture
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18 Dec, 5 tweets, 3 min read
This story is like falling into a dark hole. Every time you think you've hit the bottom, you take a step and fall further down

Literally everyone this story failed to protect workers. Cleanup of all kinds of hazardous waste is so, so fucked
grist.org/justice/tva-ki…
Here's just a sampling of how fucked this story is
It looks like I'm sharing the whole article but I promise this is only a small sample!
Seriously, this story reminds us that at every level, in every time period, big companies & the government just contaminate the hell out of the environment and workers with either no recourse or pitifully slow and underfunded response. Companies get loopholes, workers get nothing
You'll also be mad (but perhaps less surprised after reading the first article in this thread) to hear that the best free, interactive tool to learn about Superfund and other polluting sites, TOXMAP, was unceremoniously shut down by the NIH in 2019
scientificamerican.com/article/federa…

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More from @nuclearkatie

Katie Mummah Profile picture
17 Dec
Laughing but... considering
Not really, but maybe someday when throwing around $250 isn't such a big deal
Only rated to 35 degrees which kinda sucks (I've camped in places that dropped below 35F in the month of August, for example), but I would absolutely put it on my future purchases list if it was rated at 0F
Read 5 tweets
Katie Mummah Profile picture
1 Jul
🚨🚨Time for another @ANS_org webinar hosted by @ans_ymg🚨🚨

Let's learn about @PNNLab for the fifth "Spotlight on the National Labs" webinar!! You can register to attend here (starts at 13:00 EDT) or follow my thread below for the tl;dr 🧵👇us02web.zoom.us/webinar/regist…
We're hearing from EIGHT different @PNNLab employees, including lab director Steven Ashby! Ever wondered what kind of nuclear science and engineering work is going on at Pacific Northwest National Lab? Recording will be available to those who register us02web.zoom.us/webinar/regist…
PNNL is located in Richland, WA and is one of several laboratories that traces its roots back to the Manhattan Project. The lab has about 4700 staff, with about a quarter of the budget each going to Energy & Environment, National Security, and Science
Read 19 tweets
Katie Mummah Profile picture
2 May
I have some legit questions for people who hate renewables and think they're a waste of time/money/resources/hope. Not looking to start arguments here, I'm looking to understand views
Are you arguing we should put all the money currently spent on renewables (including research, govt subsidies, etc) into research for advanced nuclear? Worth it to put the amount of clean energy in the US on hold for, at minimum, years until we have designs certified AND built?
Or should we try convincing/enticing/forcing utilities to starting build more large reactors with existing design certs NOW, like AP1000s? Or build ESBWRs, APR1400s (neither of which have been built in the US before), also putting the addition of clean energy on hold for years?
Read 10 tweets
Katie Mummah Profile picture
14 Apr
Note: I'm not a health physicist and these were all back of the envelope calculations. There are decent uncertainty values associated with the entire calculation. But the point is this same: this image is T E R R I F Y I N G
But tl;dr if you ever stumble upon a radioactive source that's in Curies (not like μCi or some smaller fraction) you should probably back away. If you see a source in hundreds or thousands of Curies you should run away like your life depends on it--- because it absolutely might
Found another angle with a date stamp! 7-1-63

Extra credit to whoever who takes the decay of Co-60 into account (half life 5.217 yr) and re-runs my calculation for me😉

People w/o a radiation science background can still probably guess the outcome of a time-adjusted calculation
Read 10 tweets
Katie Mummah Profile picture
12 Jan
Message was sent in error, official statement followed up confirming no release of radioactivity.

But also it sucks this happened, sending erroneous emergency alerts is the kind of error that makes nuclear look bad and *worth* fearing
Sounds like plenty of people who were more than 10 km away got the message as well, which is uh, another mistake
Read 14 tweets
Katie Mummah Profile picture
2 Jul 19
Iran is blowing past their stockpile limit, making them out of compliance with the Iran nuclear deal aka JCPOA. Have you ever wondered what that *actually* means from a scientific standpoint? Thread 1/
This thread is for everyone so lets start with the very basic chemistry and nuclear physics. You all remember the periodic table right? All the elements we’ve ever discovered or created, organized by their number of protons 2/
The number of protons (atomic number) governs the element; an oxygen atom always has 8 protons. The atomic number along with the number of electrons govern the chemical properties of an element 3/
Read 34 tweets

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