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#science

368 posts254 participants37 posts today

"But while working on the surgeon general’s report, Dr. Nestle witnessed the power food companies wielded; although the report cited overconsumption of saturated fats as a leading cause of death, Dr. Nestle was not permitted to recommend eating less meat, a top source of the fats, because of the Reagan administration’s unwillingness to upset the meat industry."

🎁nytimes.com/2025/04/07/well/ma

The New York Times · The Nutritionist Marion Nestle Meets Her Moment, At 88By Elizabeth G. Dunn

Measuring Mucus by Dragging Dead Fish

A fish‘s mucus layer is critical; it protects from pathogens, reduces drag in the water, and, in some cases, protects against predators. But little is known about how mucus could affect terrestrial locomotion in species like the northern snakehead, which can breathe out of the water and move across land. So researchers explored the snakehead’s mucus layer by measuring the force required to drag them (and two other non-terrestrial species) across different surfaces.

The team tested the same, freshly euthanized fish twice: once with its mucus layer intact and again once the mucus was washed off. Unsurprisingly, the fish’s friction was much lower with its mucus. But they also found that the snakehead was slipperier than either the scaled carp or the scale-free catfish. The biologists suggest that the snakehead could have evolved a slipperier mucus to help it move more easily on land, thereby extending the distance it can cover.

As a fluid dynamicist, I think fish mucus sounds like a great new playground for the rheologists among us. (Image and research credit: F. Lopez-Chilel and N. Bressman; via PopSci)

#GoodNews: Fans of #RobinWallKimmerer know the importance of #reciprocity. "The notion of reciprocity between humans and the rest of the living world is receiving increasing attention in the environmental sciences and science–policy international bodies." A discussion to contribute to the evolution of #IBPES besjournals.onlinelibrary.wile by Sandra Diaz + Unai Pascual @upascual.bsky.social

Excerpts from an essay titled "The Great Energy Transition Myth"...
_______________________________________

Forget everything you thought you knew about energy transitions.

In his new book "More and More and More: An All-Consuming History of Energy," Jean-Baptiste Fressoz dismantles the comforting narrative that humanity has transitioned from one energy source to another. We never really transitioned at all. We just piled on more energy sources to the older ones, intensifying our overall consumption.

Take coal for example. While it became dominant during the 19th century, vast quantities of wood were still needed to support the coal economy – to build mines, railways and infrastructure.

This pattern continues today. Despite the rise of renewable energy sources like wind and solar, global consumption of fossil fuels remains at record highs.

"Transition" has become capitalism’s favourite disguise.
_______________________________________

FULL ESSAY -- theclimatehistorian.substack.c

Replied in thread

@david_megginson 2/2 Such promises act as a glue trap for the population. We don't learn about the suffering of the masses of cloned pigs that we abuse in animal factories. Even if the mammoths are just rapidly ageing, sick elephants: How much animal suffering. And what incalculable consequences for #habitats and #ecosystems! This is pure #supremacism, #nature as a colony to be exploited.

#deextinction #ethics #science #feasibilityMania #ecology

@animalculum

Take a look at this superb graphic from Zack Labe (@ZLabe). Zack is, by the way, someone you really should be following if you care about the climate.

Arctic sea ice is the mostly thick ice that floats on the Arctic Ocean, covering the North Pole and much of the area around it. That ice has been there for millions of years, sometimes growing in extent and sometimes shrinking, but generally holding at a steady level.

Now it is disappearing.

What you see in this graph is not a “natural” fluctuation. It is a direct and predictable result of greenhouse gases warming the atmosphere. This should not happen — and it would not happen if it wasn’t for capitalist commerce and industry wrecking our planet’s ecology.

Replied in thread

@animalculum Unfortunately, it fits perfectly into the concept of the techbros with their #TESCREAL ideologies. They dream of #eugenics to ‘improve’ a "surviving human elite" genetically and with #AI or even #AGI. I would like to see ethical debates in science back (they still existed in my childhood).
At the same time we debate about #invasiceSpecies searching their habitats.
@academicchatter

Curiosity Meets Science – Girls’ Day 2025 at #MPL & #MPZPM

We recently welcomed 30 curious girls to explore #physics, light, and #medicine at our institutions. They discovered the daily work of physicists, lab engineers, mechanics, and IT’s role in #research. With countless questions they explored labs and workshops. We hope to inspire future #science and #technology enthusiasts!

👉 More: mpl.mpg.de/de/news/artikel/spa

#GirlsDay #ZukunftGestalten #STEM

📸 Susanne Viezens, Elisabeth Offial