The domain should be back up within the next few hours.
I had the domain set on auto-renew but unfortunately something went wrong, and I didn't get an email from the registrar about it (or it got misrouted to spam).
I've renewed the registration but it seems to be taking a while to propagate back to the .IN servers. An interim measure is setting an /etc/hosts record for pinboard.in to 64.62.134.190.
My sincere apologies for the outage. The TLS cert for Pinboard renews in October, and in my mind I thought the domain renewed at that time as well, or I would have paid closer attention. Irked at my own carelessness here.
There's a nice paper on this, ICES-2018-123 "Dimethylsilanediol (DMSD) Source Assessment and Mitigation on ISS: Estimated Contributions from Personal Hygiene
Products Containing Volatile Methyl Siloxanes (VMS)". The upshot is more than half of the siloxane burden on ISS comes from God knows where (packaging, plastics, machinery, you name it).
I thought so too, but the phosphine signal turns out to be small but real. What everyone involved in the back and forth debate over it agrees on is the need to send better sensors.
It's not an absurd question. The threshold value is the one that breaks surface tension and effectively pulls waste away from the body. It will be more than a few hundredths g but less than 1g.
Unfortunately we have basically no data on the effects of partial gravity, in this context or any other. We can try flying partial-gravity parabolas in aircraft and simulate a Martian toilet the same way they tested the design for Skylab; I don't think this experiment has been done.
The hose is the same but there are different funnel attachments (the part looks kind of like the cup from a jock strap, and is longer and narrower for women)
I think you mean Artemis IV (the moon landing)? Artemis III is now a near Earth orbit mission to dock with whatever mockup lander SpaceX or Blue Origin can throw up in time.