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Hydrogen tank. that material is at a negative 423 degrees fahrenheit, right? so there is a line, this cryogenic line that is highly engineered and there is a coupler that couples it to fill the sls, and that disconnect, as they call it, that quick disconnect, is itself a high technology, right, that's been engineered over more than a decade. and for some reason, it is not sealing properly and there is a hydrogen leak. and so this isn't the first time this particular failure has occurred in terms of developing this particular mission. it hasn't occurred on the launchpad before, but, you know, i...

Troubleshooting procedure. i don't want to get too into the weeds with the technical stuff, what happens with liquid hydrogen that's so critical to help this rocket take off? explain to me as if i'm 5, please. >> sure, i will. >> as mentioned, liquid hydrogen it is so small and super cold. 423 degrees below zero. we need it because it's a fantastic fuel. one of the things that they are trying now is using some helium to increase the pressure make that surface so we don't have leak. we need it because it's the primary fuel. and all of these problems there's millions of them in this rocket. that...

India On Sunday saw a surge in the number of Covid-19 cases as the country recorded 2423 new corona cases during the last 24 hours, which is the highest after 3 February, 2668 cases came on 3 February.

SEOUL (XINHUA) – South Korea’s imported car sale logged a double-digit fall last month due to a prolonged supply shortage of semiconductors used to make vehicles, industry data showed yesterday. The number of imported vehicles sold here was 21,423 in July, down 12.2 per cent from a year earlier, according to the Korea Automobile Importers […]

Singapore, July 10 (ANI/Xinhua): Singapore reported 6,423 new cases of COVID-19 on Sunday, bringing the total tally to 1,530,304.