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Archive for February 6th, 2023

Den er go’ med dig, menneskelige fossiler ha

Det var såmænd en smukt lavet udsendelse om Peter W. Lund som var på sporet af arternes udvikling før den banebrydende publicering af Charles Darwin kom en snes år senere.

Jeg kan ikke høre hvem det er der siger at Lund fandt Menneskelige Fossiler, men det var under alle omstændigheder en af den slags fejl, som kan sende skoleungdommen i retning af konspirationsteorier.

Det blev sagt rigtigt af en forsker i udsendelsen: Menneskelige rester, knogler af mennesker, som har levet for 8½ tusinde år siden og som levede samtidig med arter, der nu er uddøde.

Preserved remains become fossils if they reach an age of about 10,000 years. Fossils can come from the Archaeaean Eon (which began almost 4 billion years ago) all the way up to the Holocene Epoch (which continues today).19 May 2022 Education National Geographic org.

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Written by Donald

Monday, February 6, 2023 at 19:17 GMT+0000

Posted in Videnskab

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Hvorfor gik A-kraft entrepreneur Westinghouse fallit?

Og hvorfor er Westinghouse et datterselskab af Toshiba?

Commodities

May 2, 2017 — 7:15 AM — Updated 6 years ago

How two cutting edge U.S. nuclear projects bankrupted Westinghouse

By Tom Hals, Emily Flitter

9 Min Read

WILMINGTON, Del./NEW YORK (Reuters) – In 2012, construction of a Georgia nuclear power plant stalled for eight months as engineers waited for the right signatures and paperwork needed to ship a section of the plant from a factory hundreds of miles away.

[Billede af en byggeplads med køletårne karakteristiske for A-kraft]

FILE PHOTO: The Vogtle Unit 3 and 4 site, being constructed by primary contactor Westinghouse, a business unit of Toshiba, near Waynesboro, Georgia, U.S. is seen in an aerial photo taken February 2017. Georgia Power/Handout via REUTERS

[…]

The approach – building pre-fabricated sections of the plants before sending them to the construction sites for assembly – was supposed to revolutionize the industry by making it cheaper and safer to build nuclear plants.

But Westinghouse miscalculated the time it would take, and the possible pitfalls involved, in rolling out its innovative AP1000 nuclear plants, according to a close examination by Reuters of the projects.

Those problems have led to an estimated $13 billion in cost overruns and left in doubt the future of the two plants, the one in Georgia and another in South Carolina.

Overwhelmed by the costs of construction, Westinghouse filed for bankruptcy on March 29, while its corporate parent, Japan’s Toshiba Corp, is close to financial ruin [L3N1HI4SD]. It has said that controls at Westinghouse were “insufficient.”

Written by Donald

Monday, February 6, 2023 at 12:59 GMT+0000

Posted in Byggeri, Videnskab

Tagged with ,