Popplio728 has added a photo to the pool:
New Braums LED signals and buttons replacing the older original Eagle signals that have been in use since 1981.
Popplio728 has added a photo to the pool:
New Braums LED signals and buttons replacing the older original Eagle signals that have been in use since 1981.
Popplio728 has added a photo to the pool:
New Braums LED signals and buttons replacing the older original Eagle signals that have been in use since 1981.
Popplio728 has added a photo to the pool:
New Braums LED signals and buttons replacing the older original Eagle signals that have been in use since 1981.
Popplio728 has added a photo to the pool:
New Braums LED signals and buttons replacing the older original Eagle signals that have been in use since 1981.
Popplio728 has added a photo to the pool:
New Braums LED signals and buttons replacing the older original Eagle signals that have been in use since 1981.
Popplio728 has added a photo to the pool:
New Braums LED signals and buttons replacing the older original Eagle signals that have been in use since 1981.
"Astronomers are preparing to capture a movie of a supermassive black hole in action for the first time," reports the Guardian:
The Event Horizon Telescope (EHT) will track the colossal black hole at the heart of the Messier 87 galaxy throughout March and April with the aim of capturing footage of the swirling disc that traces out the edge of the event horizon, the point beyond which no light or matter can escape... The EHT is a global network of 12 radio telescopes spanning locations from Antarctica to Spain and Korea, which in 2019 unveiled the first image of a black hole's shadow. During March and April, as the Earth rotates, M87's central black hole will come into view for different telescopes, allowing a complete image to be captured every three days...
Measuring the black hole's spin speed matters because this could help discriminate between competing theories of how these objects reached such epic proportions. If black holes grow mostly through accretion — steadily snowballing material that strays nearby — they would be expected to end up spinning at incredibly high speeds. By contrast, if black holes expand mostly through merging with other black holes, each merger could slow things down. The observations could also help explain how black hole jets are formed, which are among the largest, most powerful structures produced by galaxies. Jets channel vast columns of gas out of galaxies, slowing down the formation of new stars and limiting galaxy growth. In turn this can create dense pockets of material that trigger bursts of star formation beyond the host galaxy...
While the movie campaign will take place in the spring, the sheer volume of data produced by the telescopes means the scientists will need to wait for Antarctic summer before the hard drives can be physically shipped to Germany and the US for processing. So it is likely to be a lengthy wait before the rest of the world gets a glimpse of the black hole in action.
In a correction, the Guardian apologizes for originally including an AI-generated illustration of black hole with a caption suggesting it was a photo from telescopes. They've since swapped in an actual picture of the Messier 87 galaxy black hole.
The Event Horizon Telescope (EHT) will track the colossal black hole at the heart of the Messier 87 galaxy throughout March and April with the aim of capturing footage of the swirling disc that traces out the edge of the event horizon, the point beyond which no light or matter can escape... The EHT is a global network of 12 radio telescopes spanning locations from Antarctica to Spain and Korea, which in 2019 unveiled the first image of a black hole's shadow. During March and April, as the Earth rotates, M87's central black hole will come into view for different telescopes, allowing a complete image to be captured every three days...
Measuring the black hole's spin speed matters because this could help discriminate between competing theories of how these objects reached such epic proportions. If black holes grow mostly through accretion — steadily snowballing material that strays nearby — they would be expected to end up spinning at incredibly high speeds. By contrast, if black holes expand mostly through merging with other black holes, each merger could slow things down. The observations could also help explain how black hole jets are formed, which are among the largest, most powerful structures produced by galaxies. Jets channel vast columns of gas out of galaxies, slowing down the formation of new stars and limiting galaxy growth. In turn this can create dense pockets of material that trigger bursts of star formation beyond the host galaxy...
While the movie campaign will take place in the spring, the sheer volume of data produced by the telescopes means the scientists will need to wait for Antarctic summer before the hard drives can be physically shipped to Germany and the US for processing. So it is likely to be a lengthy wait before the rest of the world gets a glimpse of the black hole in action.
In a correction, the Guardian apologizes for originally including an AI-generated illustration of black hole with a caption suggesting it was a photo from telescopes. They've since swapped in an actual picture of the Messier 87 galaxy black hole.
Read more of this story at Slashdot.
Farmaceutische vervuiling blijkt een stille motor achter de wereldwijde crisis van superbacteriën, die gewone infecties weer dodelijk kan maken. Terwijl ziekenhuizen en veehouderijen streng in de gaten worden gehouden, ontsnapt de industrie die onze antibiotica produceert grotendeels aan het zicht.
Uit nieuw onderzoek naar antibioticafabrieken blijkt dat hun afvalwater concentraties resistentiegenen bevat die tot wel honderd keer hoger zijn dan in stedelijke rioolwaterzuiveringsinstallaties. In een Chinese fabriek vonden onderzoekers zulke extreem hoge niveaus in het actieve slib, waarbij de genen bovendien op ‘mobiele genetische elementen’ zaten: genetische USB-sticks waarmee bacteriën onderling instructies voor weerstand tegen antibiotica uitwisselen. Dat is precies de cocktail waaruit superbacteriën ontstaan.
De gevolgen reiken veel verder dan de fabriekspoort. Via rivieren en bodems verspreiden antibioticaresten en resistente bacteriën zich naar landbouwgebieden en uiteindelijk naar de voedselketen. De One Health‑benadering, die mens, dier en milieu als één samenhangend systeem ziet, wijst industriële lozingen inmiddels aan als een belangrijke, maar onderschatte bron van antimicrobiële resistentie. Een recente prognose schat dat antibioticaresistentie tussen 2025 en 2050 direct verantwoordelijk kan zijn voor 39 miljoen doden wereldwijd, als beleid en controle niet drastisch worden aangescherpt.
Wat dit extra wrang maakt: de technologie om tot 90 procent van de resistentiegenen uit fabrieksafval te verwijderen, bestaat al, maar wordt nauwelijks verplicht. Zolang overheden geen harde normen opleggen aan farmaproducenten, blijven hun afvalstromen broedplaatsen voor de superbacteriën die de gezondheidszorg van morgen kunnen ontwrichten.
De mislukte panenka van Brahim Diaz op het allesbeslissende moment van de finale van de Afrika Cup kwam gastland Marokko duur te staan. Na verlenging kroonde Senegal zich zondagavond in Rabat voor de tweede keer tot beste voetballand van Afrika.
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