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oemera.bsky.social
@oemera.bsky.social
38 followers 63 following 17 posts
Research associate at the Center of Applied Space Technology and Microgravity (ZARM). I build nanostructures on surfaces and study how solar-to-chemical energy conversion devices work in reduced gravity.

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Reposted
natureportfolio.nature.com
Magnets could increase the rate of water splitting in microgravity by up to 240% over unmodified devices, potentially producing substantially more oxygen for astronauts, according to a proof-of-concept study published in Nature Chemistry. go.nature.com/3HIK0kR 🧪
This image is figure 4 showing the scheme of a proof-of-concept cylindrical MHD drive electrolytic cell architecture exploiting the Lorentz force to induce vortical phase separation in microgravity.
August 19, 2025 at 3:41 PM
Reposted
waiterich.bsky.social
Cool map. I've seen these for US/UK but not Germany.

Keep in mind that the solar PV hectares are probably producing *40-100x* the useable energy per hectare vs. the "energy plants" (e.g., corn, canola) bioenergy feedstock hectares. Important context when people complain about solar land use. 🔌💡
cvictordus.bsky.social Christian Victor @cvictordus.bsky.social · May 19
I made a little graphic that shows that the total area used by solar parks and wind power in Germany is significantly less than that of golf courses (approx. 50,000ha), for example.

Some of the figures are from different years, but the proportions are pretty accurate.
Diagram on a stylized map of Germany. It shows the land use of different types of use. In addition to the largest points such as livestock feed, forests and plant-based nutrition, there are some smaller points that show that the areas used for wind power and photovoltaics are significantly smaller than those used by golf courses and that currently about as much area is used for PV systems as for growing Christmas trees.
May 20, 2024 at 9:24 PM
Reposted
chadbourn.bsky.social
This is great news. The HPV vaccine is cutting cases of cervical cancer by 90%.
HPV vaccine stops 90% of cervical cancer cases
England began vaccinating teenage girls in 2008 and results show it is paying off.
www.bbc.co.uk
May 16, 2024 at 8:47 PM
Reposted
danirabaiotti.bsky.social
Journalists! If you write about science, climate, the environment etc you are more than welcome to join and post in the science feed. Ask below & provide an example of your work and I will add you 🧪
danirabaiotti.bsky.social Dani cRabaiotti 🦀 @danirabaiotti.bsky.social · Jan 10
Hi, my name's Dani!

I'll be adding science communicators, journalists and photographers to the feed, plus anyone else not covered by our other moderation topics.

Please provide a link to web page or an example of your work when you request to be added ^_^
I aim to process requests within 7 days.
February 14, 2024 at 7:24 AM
Reposted
waiterich.bsky.social
Types of scientific paper on food, land, and natural climate solutions

(Riffing off of @xkcd.com original) 🧪
Types of scientific paper on food, land, and natural climate solutions We’re more doomed than you thought …but theoretically could be ok if everything works out perfectly Here is a solution that fixes everything if implemented by everyone everywhere forever My sector isn’t part of the problem (funded by sector) Here are some highly technical results Counting up carbon in trees plants and soils Technology is good Technology is bad Great result in one place. Headlines will make it seem applicable everywhere People are counting stuff wrong Let’s put more Nature on farms Let’s put less farms in nature
December 17, 2023 at 1:47 PM
Reposted
catbus.phd
Photographs of Lightning by Hiroshi Sugimoto
black and white photograph of a lighting bolt black and white photo of a lightning bolt
November 25, 2023 at 8:59 PM
Reposted
c0nc0rdance.bsky.social
A thread of messy professor's offices
(to make you feel better about your own)
Trigger warning for neatniks.

1. Albert Einstein.
“If a cluttered desk is a sign of a cluttered mind, of what, then, is an empty desk a sign?”
Einstein sits at his messy desk, a blackboard and bookshelves in the background. He is reading intently.
October 18, 2023 at 12:20 PM
Reposted
c0nc0rdance.bsky.social
Honeybees understand the concept of zero, or "null set", putting them in the same cognitive class as parrots, dolphins and primates in that regard.

What's more interesting to me is HOW WE CAN KNOW THAT.

The experimental design is what I want to focus on:
The European honey bee may have originated from eastern Africa. This bee is pictured in Tanzania. Photo: Muhammad Mahdi Karim 12mm long Apis mellifera, Apis mellifera. Pictured in Dar es Salaam, Tanzania. https://en.wikipedia.org/wiki/Honey_bee#/media/File:Apis_mellifera_Tanzania.jpg
October 15, 2023 at 3:39 PM
Reposted
alexwitze.bsky.social
Why yes we did capture the annular eclipse. Photographed from Rio Rancho, New Mexico, by my husband Jeff Kanipe with a 600mm lens and solar filter.
A perfect light golden ring (the Sun nearly completely eclipsed by the Moon) on a black background.
October 14, 2023 at 8:25 PM
Reposted
xkcd.com
This is just a filter I’m holding, not a lens, so that’s the actual angular size of the sun in the photo. I’m always a little unnerved to realize how small the sun is when you take away all the glare.
October 14, 2023 at 8:48 PM
Reposted
drlutzboehm.bsky.social
'Brewing #coffee' is what we in engineering call an extraction process. Components related to the flavor are 'dissolving' in the water. Usually, this dissolving process works better in warmer than in colder conditions,...
#SciCom #WissKomm
1/6
October 11, 2023 at 11:13 AM
Reposted
mpoessel.de
Idea for a science-fiction world: The main planet is a cube (ok, this would be an "unexplainable artefact"), which means you could actually have surface expeditions into the vacuum of space (namely to the edges - the atmosphere would remain fairly round after all). thescipub.com/pdf/pisp.201...
thescipub.com
October 11, 2023 at 10:17 AM
Reposted
banditelli.org
Tern festival at sunset in Orange County 🪶
Hundreds of terns fly over the ocean as two ships are in the distant and a thick Marine layer beyond that after sunset with a bright orange sky A minute before the previous shot, the terns are going the other direction
October 9, 2023 at 6:38 AM
Reposted
the-episiarch.bsky.social
This fungus changes ant behaviour to enhance its transmission.
🧪
But unlike the zombie ant fungus, it doesn't zombify or kill ants, instead, it makes them less aggressive towards other ants by changing how they "smell" to each other
dailyparasite.blogspot.com/2023/04/rick...
Left: Illustration of a Rickia wasmannii fungus thallus, Right top: Uninfected ant, Right bottom: ant infected with Rickia wasmannii fungus thalli, which are the white "hair" all over its body
October 8, 2023 at 1:42 PM
Reposted
rahmstorf.bsky.social
In Szenarien sagen Klimamodelle seit Langem voraus, dass der Golfstrom langsamer wird. Nun konnte das für die vergangenen 40 Jahre auch nachgewiesen werden. www.heise.de/hintergrund/...
Jetzt ist es klar: Der Golfstrom schwächelt wirklich
In Szenarien sagen Klimamodelle seit Langem voraus, dass der Golfstrom langsamer wird. Nun konnte das für die vergangenen 40 Jahre auch nachgewiesen werden.
www.heise.de
October 7, 2023 at 2:45 PM
Reposted
waiterich.bsky.social
If you care about nature and/or the climate…

…you need to care about food! 🧪 🌽 🌾 🍚 🥩 🍗 🥗 🍎 🌲 🌳
Food is the #2 driver of climate change #1 driver of biodiversity loss, deforestation, freshwater use and pollution, and overfishing Our population is growing from 8 billion today to 10 billion by 2050 We can’t achieve global climate and nature goals without big changes to food production and consumption!
September 13, 2023 at 9:16 PM
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jhillje.bsky.social
"Je stärker die Union auf die AfD programmatisch zugegangen ist [...] desto höher war tendenziell der Stimmenanteil der AfD." Inhaltliche Annäherung führt zu elektoralem Aufstieg der AfD.

Wichtige Analyse von 37 Landtags- & Bundestagswahlen von @marcdebus.bsky.social: www.dvpw.de/blog/schwaec...
October 6, 2023 at 2:22 PM
Reposted
waiterich.bsky.social
Global use of the global crop supply (by calories) in 100 emojis: 🧪

🥖🥖🥖🥖🥖🥖🥖🥖🥖🥖
🥖🥖🥖🥖🥖🥖🥖🥖🥖🥖
🥖🥖🥖🥖🥖🥖🥖🥖🥖🥖
🥖🥖🥖🥖🥖🥖🥖🥖🥖🥖
🥖🥖🥖🥖🥖🥖🥖🥖🥖🥖
🥖🥖🥖🥖🥖🍗🍗🍗🍗🍗
🍗🍗🍗🍗🍗🍗🍗🍗🍗🍗
🍗🍗🍗🍗🍗🍗🍗🍗🍗🍗
🍗🍗🍗🍗🍗🍗🍗🍗🍗🍗
🍗⛽️⛽️⛽️⛽️❓❓❓❓❓

🥖 Direct food
🍗 Animal feed
⛽️ Biofuels
❓ Other uses

Source: Cassidy et al. (2013). iopscience.iop.org/article/10.1...
October 4, 2023 at 3:47 PM
Reposted
waiterich.bsky.social
Global land use (13 billion hectares of ice-free land on 🌎) in 100 emojis: 🧪

🌿🌿🌿🌿🌿🌿🌿🌿🌿🌿
🌿🌿🌿🌿🌿🌿🌿🌿🌿🌿
🌿🌿🌿🌿🌿🌿🌿🌿🌿🌿
🌿🌿🌿🌿🌿🌿🌿🌾🌾🌾
🌾🌾🌾🌾🌾🌾🌾🌾🌾🌳
🌳🌳🌳🌳🌳🌳🌳🌳🌳🌳
🌳🌳🌳🌳🌳🌳🌳🌳🌳🌳
🌳🌳🌳🌳🌳🌳🌳🌳🌳🌳
🟩🟩🟩🟩🟩🟩🟩🏜🏜🏜
🏜🏜🏜🏜🏜🏜🏜🏜🏜🏙
October 3, 2023 at 10:06 PM
oemera.bsky.social
The blue sky is filling up.
Pigeons are flying overhead simultaneously, appearing dark against the backdrop. The sky is blue and lightly cloudy.
October 3, 2023 at 3:46 PM
Reposted
kellylepo.bsky.social
JWST can produce beautiful images, but it's not quite a point-and-shoot camera.

For example, the stars in the Pillars of Creation don't actually have black centers, it's an artifact introduced by the NIRCam detector.

🧵 on JWST image artifacts. 🔭🧪
1/

Learn more: webbtelescope.org/contents/art...
A black and white JWST image of the pillars of creation. At the bottom left of this vertical image are the thickest regions of gas and dust. There are many layers of semi-transparent gas and dust overlaying one another. A peak rises about a third of the way from the bottom, and becomes far darker toward the tip. The dust becomes more diaphanous about halfway up the screen. There’s a slight gap in the dust, which allows the background to come into view clearly. About 60% of the background in this image is littered with tiny stars. Most of the stars in this image have black points in their center. The pillars continue, taking the shape of a shoulder at the base, with three prominent columns rising out toward the upper right. The top left pillar is the largest and widest. The peaks of the second and third pillars are set off in darker shades.
October 2, 2023 at 2:54 PM