AskLemmy.world Meta : Should posts about the current conflict in the Middle East be allowed?
Rule 6 states “No US politics”, but methinks this is kinda grey on that one. Upvote this post if you think we should allow posts in AskLemmy.world on the current situation in Iran (provided they don’t clearly break the existing rules), and down vote if you think they should be banned.
YSK - All song birds on the planet are descended from ancestors in Australia.
The impact that wiped out the dinosaurs also wiped out all songbirds, except for in (ark) Australia. Australian songbirds then spread out to rest of the planet. The closest living descendents (aka basal lineages) are the Lyrebird and the Rufus scrub bird. The lyrebird’s song is a mixture of its own song and other birds songs. They have been also been known to mimic chainsaws, car alarms, camera shutters, and human speech.
So apparently full stops in texts are 'passive agressive' now. What other unwritten rules for texting have changed over the last couple of decades?
What was a time when you drank the kool aid?
Inside a fridge is a space that is (by design) inhospitable to life
TIL that someone wrote a whole book when the only way they could communicate was by blinking their left eyelid.
What's your strategy for waking up early without feeling like garbage?
Presence of Perfluorohexanoic Acid in Fluoroelastomer Watch Bands
Abstract Many “smart” and “fitness” watch bands are advertised to contain fluoroelastomers, a type of synthetic rubber designed to be resilient against skin oils and sweat. Fluoroelastomers, which are considered a polymeric form of per- and polyfluoroalkyl substances (PFAS), have historically involved the use of shorter-chain PFAS as surfactants in the polymerization process. In this study, 22 watch bands were analyzed across numerous brands and price points for the presence of PFAS. Products were first screened for total fluorine using particle-induced gamma-ray emission spectroscopy on the surface of these bands, and 15 of the 22 watch bands contained total F concentrations >1% fluorine, suggesting the widespread use of fluoroelastomers in this product category. Watch bands then underwent solvent extraction and targeted LC-MS/MS analysis for 20 PFAS. Perfluorohexanoic acid (PFHxA) was the most frequently detected compound with concentrations from <LoD to 16662 ng/g. A subset of six watch bands also underwent direct total oxidative precursor (dTOP) assay to determine the presence of PFAS precursors. The very high concentrations of PFHxA readily extractable from the surfaces of fluoroelastomer watch bands, together with the current limited knowledge on the dermal absorption of PFHxA, demonstrate the need for more comprehensive exposure studies of PFHxA.
Invitations to help moderate AskLemmy(@lemmy.world)
What are some (not illegal) ideas to make corporations feel the pain when they allow our data to be stolen?
I’m getting a bit sick of large corporations a) demanding excess data as a condition of doing business with me, b) allowing it to be stolen, and c) giving zero fucks about it. What are some things that us netizens can do to make our displeasure known. Extra points for funny ideas.
