BastingChemina

joined 1 year ago
[–] BastingChemina 2 points 3 months ago

What !?

Until now I never considered that it would be made illegal to hang your clothes.

This is distopia material.

[–] BastingChemina 7 points 3 months ago

From what I see the thrusters are faulty.

Boeing said the cause is a Teflon seal bulging, they cannot identify why and when it is bulging but they say it will not happen on the way down.

Also, all the previous flights of Starliner had thruster malfunctions or shutdowns and they "fixed it" without knowing the root cause of the issue.

[–] BastingChemina 1 points 3 months ago* (last edited 3 months ago)

It seems like there is disagreement within NASA whether it is safe for the astronauts to return on Starliner or not.

Boeing engineers did test on the ground to try to replicate the issue that is occuring on the thrusters. They found thqt the issue isndue to a Teflon seals bulging but they don't understand precisely why is the seal buldging and when it occurs.

However they feel confident enough that the problem would not happen on the way back to earth. Some people are NASA are not as confident as they are and would like to know the precise cause of the bulging.

About the software: there is a capability in the software for the capsule to undock autonomously.

However it would means resurrecting parameters that have not been used and updated since 2022, there is some reconfiguration needed and testing to make sure it still does what is needed despite the different hardware and software change that happened since then.

It is really not looking good for Boeing right now and I don't know if the Starliner program will survive this accident.

https://arstechnica.com/space/2024/08/nasa-official-acknowledges-internal-disagreement-on-safety-of-starliner-return/2/

[–] BastingChemina 2 points 3 months ago

Not anymore, it was designed for 7 people in 2 seat rows using propulsive landing.

During development they switched to parachute instead of propulsive landing, since parachute can be rougher they had to lean the seat more back for the astronauts to be able to handle more G's.

In this lean back position there is not enough space for a second row of seats anymore

[–] BastingChemina 4 points 3 months ago

Being low probably helped a lot

[–] BastingChemina 3 points 3 months ago

Applied to a real situation I've been through :

  • my pool 4.5m wide, 9m long and 1.5m deep, the current level of salt is 2.5g/l and a bag of salt weight 20kg. How many bags of salt do I need to bring the level to 3g/l ?
  • OR: my pool 14'9" wide, 29'6" long and 5' deep, the current level of salt is 2500ppm and a bag of salt weights 40lbs. How many bags of salt do I need to bring the level to 3000ppm ?

The answer to one is 1.5 bag, the answer to the other one is "fuck that, I'm getting 8 bags at the store and it should be good enough"

[–] BastingChemina 2 points 3 months ago

I love my steel bike, it's great on the road, on gravel or for a quick grocery shop.

I'm not gonna win any competition with it but it is honestly such a fun bike.

And with care it should last forever.

[–] BastingChemina 3 points 3 months ago (2 children)

The fact that NASA has been considering the option to use the Dragon capsule to bring them back shows that there is some concerns.

[–] BastingChemina 4 points 3 months ago

It's so slick and clean looking ! It looks like the concept version of the engine.

[–] BastingChemina 3 points 3 months ago (1 children)

There is footprints of homo erectus from 1.5 millions years ago showing that they were walking like we do.

https://www.historyofinformation.com/detail.php?id=2571

[–] BastingChemina 41 points 3 months ago (1 children)

Because one is stimulating the economy and the other one is just more money in the pocket of the billionaires.

[–] BastingChemina 2 points 3 months ago

Yes, it's better for safety and health reason.

Plus 30km/h is in the speed range of bikes, so it become much more accessible to bike around in the city and more people start to do it.

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