droughtcenter, a random en
@droughtcenter@mastodon.world avatar

Conditions improved in south-central and northern areas of Kansas this week, while both extreme and severe drought expanded slightly in parts of western Kansas.

The state’s vacillating drought conditions over the past few weeks have affected some winter wheat crops. This week’s USDA Crop Progress report rated Kansas’ winter wheat condition at 11% very poor, 21% poor, 36% fair, 29% good and 3% excellent.

gutenberg_org, a random en
@gutenberg_org@mastodon.social avatar

French chemist Antoine Lavoisier died in 1794.

He is best known for his development of the law of conservation of mass, which states that mass is neither created nor destroyed in chemical reactions. This principle helped to debunk the phlogiston theory, which was a prevailing theory at the time that suggested substances released a material called "phlogiston" when they burned. He also made significant contributions in understanding respiration as a form of combustion.

Hand sketch engraving made by madamme Lavoisier in the 18th century featured in "Traité élémentaire de chimie" . Lavoisier performed his classic twelve-day experiment in 1779 which has become famous in history. First, Lavoisier heated pure mercury in a swan-necked retort over a charcoal furnace for twelve days. A red oxide of mercury was formed on the surface of the mercury in the retort. When no more red powder was formed, Lavoisier noticed that about one-fifth of the air had been used up and that the remaining gas did not support life or burning. Lavoisier called this latter gas azote. He removed the red oxide of mercury carefully and heated it in a similar retort. He obtained exactly the same volume of gas as disappeared in the last experiment. He found that the gas caused flames to burn brilliantly, and small animals were active in it as Joseph Priestley had noticed in his experiment. Finally, on mixing the two types of gas, i.e. the gas left in the first experiment, and that given out in the second experiment, he got a mixture similar to air in all respects. In his experiments Lavoisier analysed air into two constituents: the one which supports life and combustion, and is one-fifth by volume of air he called oxygen, the other four-fifths which does not he called azote. This latter gas is now called nitrogen. From the two gases he synthesised something that has the characteristics of air.

LeeFromVT, a random en
@LeeFromVT@masto.ai avatar

Sadly, Too True

bicmay, a random en
@bicmay@med-mastodon.com avatar

"...menstruation has been understudied for decades, creating a knowledge vacuum in which patients with pain or heavy bleeding wait years for a diagnosis. In recent years, however, more scientists have begun to study the process and menstrual fluid — research that could uncover crucial information about human health that’s been unjustly ignored."

https://www.vox.com/health/2024/4/17/24132112/period-mental-health-depression-anxiety-menstruation

ArneBab, a random de
@ArneBab@rollenspiel.social avatar

Es gibt laut Youtube erst 1300 Zugriffe auf das Video, in dem @rahmstorf die Wahrscheinlichkeit des Zusammenbruchs des Golfstroms (genauer: der AMOC) bespricht.

Lasst uns das ändern.

Das Video ist verständlich und liefert tiefgehendes Verständnis. Es ist die Zeit wert.

Nähert sich die Atlantic Overturning Circulation einem Tipping point?
https://www.youtube.com/watch?v=HX7wAsdSE60
https://yewtu.be/watch?v=HX7wAsdSE60
https://piped.adminforge.de/watch?v=HX7wAsdSE60

Bitte boostet diesen Tröt und gebt den Link weiter!

davemark, a random en
@davemark@mastodon.social avatar

New vaccine strategy eliminates need for boosters:

"RNA-based vaccine strategy that is effective against any strain of a virus and can be used safely even by babies or the immunocompromised"

  • "one and done" approach
  • targets a part of the viral genome that is common to all strains of a virus
  • tested in mice

Details here...

https://news.ucr.edu/articles/2024/04/15/vaccine-breakthrough-means-no-more-chasing-strains

CTD,
@CTD@mastodon.social avatar

@davemark @flargh and all subsequent Gs as well. It’s super effective

Bizarroland,
@Bizarroland@kbin.social avatar

You peasants are still on Gs? I'm running on H now

gutenberg_org, a random en
@gutenberg_org@mastodon.social avatar

British scientist Rosalind Franklin died in 1956.

Her most famous contribution to science came from her X-ray diffraction images of DNA, particularly Photo 51, which provided crucial evidence for the double helix structure of DNA. Her photo was shared without her knowledge with J. Watson & F. Crick, who used it as a basis for their model of DNA's structure. Their work overshadowed her contribution, & she was not fully recognized for her role until after her death.

lauren, a random en
@lauren@social.lol avatar

I didn't have a pair of glasses but I had something WAY cooler... a camera obscura!

obtener, a random en
@obtener@mastodon.world avatar
plazi_species, a random en
@plazi_species@mastodon.green avatar
livus, a science en
@livus@kbin.social avatar
Stratoballoon, a random en
@Stratoballoon@mastodon.social avatar

StratoCat is an independent source of historical data and current news on the development of stratospheric balloons for scientific research, aerospace and military applications, and commercial exploitation of near space. Online since 2005. Based on Buenos Aires, Argentina

The website publishes a newsletter called "World Balloon News".

https://stratocat.com.ar


coreyspowell, a random en
@coreyspowell@mastodon.social avatar

This is how technology changes our view of reality.

The enormous LSST camera (the eye of the Rubin Observatory) will will soon start scanning the entire visible universe every 3-4 days. It will create the grandest movies ever made, watching for anything moving, flickering , appearing, or vanishing in deep space.

https://rubinobservatory.org/about

mohaneds, a random en

Random Thought: I wonder when modern neurotransmitters evolved. The neurotransmitters we know and love (serotonin, gaba, glutamate, dopamine, epinephrine/norepinephrine, histamine ETC) are in use by mammals and reptiles, so i'm guessing like 10-20 million years ago.

rayckeith,
@rayckeith@techhub.social avatar

@mohaneds (200-250 million years ago, for mammals.)

plazi_species, a random en
@plazi_species@mastodon.green avatar
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