Assistant Prof studying Volcanoes. ♥️Microanalysis, Python 🐍, Open Science. Laser Radial sailor ⛵, Bike advocate 🚲. Chronically Ill (GI). She/herhttps://bsky.app/profile/pennywieser.bsky.socialhttps://bsky.app/profile/pennywieser.bsky.social/post/3mhz4lsws2c2yStressful morning getting things ready for a week of my volcanology student doing their SEM class projects. Instrument has no comms, not going to vacuum, eventually diagnosed as chiller issue. All worked out in end but was horrified at the prospect of having to do all the scheduling again!27 Mar 2026 02:55 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3mhz4lsws2c2yhttps://bsky.app/profile/pennywieser.bsky.social/post/3m7ylbjaiv22bI love a Sunday emergency vet visit because the dog is stupid enough to have eaten a bee..very fortunate we live 10 mins from an emergency vet because it was swelling fast...15 Dec 2025 02:24 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3m7ylbjaiv22bhttps://bsky.app/profile/pennywieser.bsky.social/post/3m74r7i67h224I have definitely become california soft. It has been anomalously cold (10-15C) during the day over the last week and I'm miserable. Keeping the house at 20C and yet so much colder than in the UK at 17C wearing the same clothes. Brrr. Do we really adapt to living somewhere warm?04 Dec 2025 00:56 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3m74r7i67h224https://bsky.app/profile/pennywieser.bsky.social/post/3m5zr4beew22lI am so done with planned obsolescence. This week our washer Got a repair guy out, looked at it (from a distance) looked the error codes I sent and said 'not worth fixing, that'll be $110 for the call out). No one will even look at our broken dehumidier....20 Nov 2025 02:51 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3m5zr4beew22lhttps://bsky.app/profile/pennywieser.bsky.social/post/3m2nbio7sok2qI naively thought the police would want to hear my side of a car left hooking me. Victim shaming 100%. Moment I said I was on an e bike the officer said 'thats a car, you have to follow the rules of the road'. Sir, I was left hooked in a bike lane, travelling along. 'we have lots of ebike crashes'..07 Oct 2025 23:24 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3m2nbio7sok2qhttps://bsky.app/profile/pennywieser.bsky.social/post/3m2kyp3h54s2cTwo bike accidents in 2 years, both cycling home from office hours. Can't decide if we should ban cars or ban office hours. Driver left hooked me across a two way cycle lane without even looking in his mirrors. Also second crash where helmet saved my head. #WearAHelmet #Lookinyourgoddamnmirrors07 Oct 2025 01:41 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3m2kyp3h54s2chttps://bsky.app/profile/pennywieser.bsky.social/post/3m22slm7ql22kSecond open access Mauna Loa paper available! Here we investigate storage depths and degassing systematics using fluid inclusions, and olivine deformation using EBSD in lavas and tephras from 7 eruptions (1852-2022). TLDR: SO2 degasses earlier than expected https://doi.org/10.1007/s00445-025-01874-530 Sep 2025 15:09 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3m22slm7ql22khttps://bsky.app/profile/pennywieser.bsky.social/post/3lzryq5fxnc2zLast week my husband came back with a 'squash' for dinner which turned out to be the hardest, toughest object known to man. Having come back from the store today, I see he fell into the 'these gourds out front must be edible' trap for foreigners, not realizing Americans buy them as decorations.27 Sep 2025 03:05 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lzryq5fxnc2zhttps://bsky.app/profile/pennywieser.bsky.social/post/3lzkh5patyk2bWay too hot in Berkeley this evening (33C), so headed down to spend a few hours in the amazing microclimate at the marina (21C). Bay area temperature gradients over 3 miles are something else. Caught an awesome sunset too.24 Sep 2025 03:02 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lzkh5patyk2bhttps://bsky.app/profile/pennywieser.bsky.social/post/3lzj6rh7lpk2uExcited to share my new open-access paper looking at magma storage depths for these beautiful xenoliths from Mauna Loa Volcano. https://doi.org/10.1007/s00445-025-01869-2 🧵below, TLDR - previous suggestions of ~20 km deep Opx crystallization are inconstant with fluid inclusion depths and thermodynamic modelling.23 Sep 2025 14:59 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lzj6rh7lpk2uhttps://bsky.app/profile/pennywieser.bsky.social/post/3lzg6gkwq322rRudely awaken by the Hayward fault. Very cool how soon after shaking we got the shake alert. If we'd been more than 1.6 km away from the epicenter would have come first! Seems we always get a feelable quake within a week of me finishing my EQ module. Great for engagement! Biggest I've felt so far. [contains quote post or other embedded content]22 Sep 2025 10:15 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lzg6gkwq322rhttps://bsky.app/profile/pennywieser.bsky.social/post/3lz2udmex5s2iMy doctor said today she liked my hiking backpack (my 30L osprey), and was I going for a hike after my appointment? Had to explain it's just my backpack I take to work. Geologist/cyclist problems!17 Sep 2025 22:15 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lz2udmex5s2ihttps://bsky.app/profile/pennywieser.bsky.social/post/3lxzowr7bjc22First cold day of the semester, and the realization that spending a summer learning to wing foil means I have developed an anomalously muscley elbow joint/lower forearm and I now can't bend my arms in all my teaching blazers... 💪04 Sep 2025 17:41 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lxzowr7bjc22https://bsky.app/profile/pennywieser.bsky.social/post/3lxlmsh3frk2qUndergraduate Isabelle Susman spreading the word about magma storage in American Samoa at today's MPS undergrad research fair. Isabelle is looking for PhDs and will be at GSA where you can all learn more! #ProudAdvisor30 Aug 2025 03:25 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lxlmsh3frk2qhttps://bsky.app/profile/pennywieser.bsky.social/post/3lxicxl5ba22wI am always nervous for the first day of class (feels a lot of pressure to set the tone, get them hyped about the course), and i forget how much fun it is to meet 100 keen students who are just starting their uni journey and want to learn about the environment!28 Aug 2025 19:51 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lxicxl5ba22whttps://bsky.app/profile/pennywieser.bsky.social/post/3lxglvzoh5k2mPlanning my seminar visits for the year and so many hotels seem to be stopping providing microwaves and fridges..this is an absolute nightmare as someone who has to sort my own food. For my NYC trip my host lent me her microwave and I had to wait 2 hrs for the hotel to bring up a fridge..fml.28 Aug 2025 03:26 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lxglvzoh5k2mhttps://bsky.app/profile/pennywieser.bsky.social/post/3lwh6ftkzbk2iNow my paper is submitted I have finally had to stop denying I need to teach 150 students in 2 weeks, and have managed to exceed the activation energy to start my course canvas page.15 Aug 2025 15:32 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lwh6ftkzbk2ihttps://bsky.app/profile/pennywieser.bsky.social/post/3lwh3o3laj22hInterested in applying Raman spectroscopy to analyse CO2 geofluids (in melt or fluid inclusions)? Check out our new preprint looking at analytical best practices - how do you get the best accuracy and precision out of your Raman system, and common traps to fall into. https://eartharxiv.org/repository/view/9952/15 Aug 2025 14:43 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lwh3o3laj22hhttps://bsky.app/profile/pennywieser.bsky.social/post/3lvzaew43ws2eFlying around the bay today (with more crashes than you would want on a commerical flying object)! hydrofoils are truly the most amazing things. Physics is so cool that a 2000 cm2 piece of carbon fiber can lift a soaking wet me and a board into the air.10 Aug 2025 02:30 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lvzaew43ws2ehttps://bsky.app/profile/pennywieser.bsky.social/post/3lvhkcqyitc2xVIBE lab group paddleboard/kayak outing to say goodbye to the wonderful @cljdevitre.bsky.social, the very first member of my lab group, who is starting as an Assistant Professor at UOttowa in Sept after nearly 3 years of fab fluid inclusion postdoc work🎉.03 Aug 2025 01:39 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lvhkcqyitc2xhttps://bsky.app/profile/pennywieser.bsky.social/post/3lunx5spfok23Spending the day tidying up all my code for a paper so the jupyter notebook for each figure and all its data it calls is in a tidy supplement. Great for FAIR principles, but also great for my sanity when doing revisions, and future Penny who is pretty sure she has already written code for that.23 Jul 2025 21:20 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lunx5spfok23https://bsky.app/profile/pennywieser.bsky.social/post/3lu74viljhc2iCelebrating resubmitting a paper this morning! The bay area really is the most amazing natural playground - all you need is 3mm of neoprene and the world is your oyster. Finally making some progress with some sustained foil flights, and some accompanying large crashes!17 Jul 2025 23:53 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lu74viljhc2ihttps://bsky.app/profile/pennywieser.bsky.social/post/3ltk34xhhc22hAfter a frustrating day of realizing our repaired stage wasn't as repaired as we would have liked, most of my wonderful research group took a stroll up the Berkeley fire trails..always so beautiful up there!09 Jul 2025 14:55 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3ltk34xhhc22hhttps://bsky.app/profile/pennywieser.bsky.social/post/3ltdbs7g6a22cFolks at my club ask where I find a seemingly unlimited supply of people who have never sailed before to come racing. The wonderful VIBE Lab undergrads are always keen, and deserve it after a summer (or 3) of hard work in the lab looking at fluid inclusions!06 Jul 2025 22:06 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3ltdbs7g6a22chttps://bsky.app/profile/pennywieser.bsky.social/post/3lsmpmesx2k2zCelebrating my first graduate student passing his qualifying exam! Go @alexbearden.bsky.social. I also didn't know the answer to the hardest question! #ProudSupervisorMoment27 Jun 2025 22:42 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lsmpmesx2k2zhttps://bsky.app/profile/pennywieser.bsky.social/post/3lsfk5zzack2oIf anyone tells you petrology doesn't give you transferable skills, don't listen! I spend my days grinding tiny crystals and setting them in epoxy, and my evenings sanding dings in my foil board and filling them with epoxy! Only difference is the grit of sandpaper (120 vs 10,000) and epoxy volume.25 Jun 2025 02:16 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lsfk5zzack2ohttps://bsky.app/profile/pennywieser.bsky.social/post/3lryrvudaps2xLifeguard dog watching over me wingfoiling. Lots of high speed crashes today as I got up on the foil. It's a steep learning curve and tough to be bad at a watersport again!20 Jun 2025 00:30 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lryrvudaps2xhttps://bsky.app/profile/pennywieser.bsky.social/post/3lrt2chmuss2fThis is why 'Just leave the US' isn't as simple as folks might think. Its not like opportunities aboard are abundant either. [contains quote post or other embedded content]17 Jun 2025 17:44 +0000at://did:plc:vvbdpfdpbmmrizpjylro2cdx/app.bsky.feed.post/3lrt2chmuss2f