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Japan starts space elevator experiments

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Re: Japan starts space elevator experiments

#31

Earlier quoted context omitted.

"near-zero-g" Why would it be "zero-g" you're not in orbit?

You are moving from ground (1g) to geostationary orbit at zero. It will be a slow progression from one to the other (with a very slight lateral acceleration) but imho once below .5g anyone who is going to get air/sea/space sick wont see much difference.

Ah good point - I was just thinking about lower down.

Re: Japan starts space elevator experiments

#32

The cars would travel at up to 200kph and arrive at the space station eight days after departure from Earth. These early cable experiments are important, but someone should also be working on the composing an 8 day Elevator Muzak score that won't drive you insane.

What is kph? I can't be 200 km per hour and have it take 8 days.

In SI, that would be kilo pico hour. But yeah I'm pretty sure it's kilometers per hour in American.

Re: Japan starts space elevator experiments

#33
post #29

> "...six oval-shaped cars, each measuring 18m x 7.2m holding 30 people, ... eight days ...." Whooooa. Let's think about this for a second. Eight days means people need to sleep (and not just sitting up in a chair, no matter how comfy). At 1m x 2m per bed that would be a 15m x 4m space even without aisles to walk between the beds or down the middle or any sort of privacy separators. Also, a bathroom and actual washin…

Shouldn't we just knock the people out for the 8 day trip?

Re: Japan starts space elevator experiments

#35

The cars would travel at up to 200kph and arrive at the space station eight days after departure from Earth. These early cable experiments are important, but someone should also be working on the composing an 8 day Elevator Muzak score that won't drive you insane.

What is kph? I can't be 200 km per hour and have it take 8 days.

8 * 24 * 200 = 38,400 km.

Geostationary orbit is 35,786km above the equator, so 8 days feels a fair approximation.

Re: Japan starts space elevator experiments

#36
post #29

> "...six oval-shaped cars, each measuring 18m x 7.2m holding 30 people, ... eight days ...." Whooooa. Let's think about this for a second. Eight days means people need to sleep (and not just sitting up in a chair, no matter how comfy). At 1m x 2m per bed that would be a 15m x 4m space even without aisles to walk between the beds or down the middle or any sort of privacy separators. Also, a bathroom and actual washin…

six oval shaped cars with those measurements each is about 780 square meters in total. The average Tokyo condo is about 65 square meters (for a family of three). Somewhat unpleasant for 30 people but not really that small. Like 3 people in one Tokyo apartment density wise.

Re: Japan starts space elevator experiments

#37

The cars would travel at up to 200kph and arrive at the space station eight days after departure from Earth. These early cable experiments are important, but someone should also be working on the composing an 8 day Elevator Muzak score that won't drive you insane.

What is kph? I can't be 200 km per hour and have it take 8 days.

[deleted]

Re: Japan starts space elevator experiments

#38
post #29

> "...six oval-shaped cars, each measuring 18m x 7.2m holding 30 people, ... eight days ...." Whooooa. Let's think about this for a second. Eight days means people need to sleep (and not just sitting up in a chair, no matter how comfy). At 1m x 2m per bed that would be a 15m x 4m space even without aisles to walk between the beds or down the middle or any sort of privacy separators. Also, a bathroom and actual washin…

Shouldn't we just knock the people out for the 8 day trip?

And how exactly do you plan to 'knock out' people safely for eight days, or even just a few? Heck, even for just a few hours without medical equipment and personnel?

Re: Japan starts space elevator experiments

#39

The cars would travel at up to 200kph and arrive at the space station eight days after departure from Earth. These early cable experiments are important, but someone should also be working on the composing an 8 day Elevator Muzak score that won't drive you insane.

What is kph? I can't be 200 km per hour and have it take 8 days.

For a space elevator, the "space station" is near geosynchronous orbit. 36000 km / 200 km/h is roughly 8 days.

Re: Japan starts space elevator experiments

#40

The cars would travel at up to 200kph and arrive at the space station eight days after departure from Earth. These early cable experiments are important, but someone should also be working on the composing an 8 day Elevator Muzak score that won't drive you insane.

What is kph? I can't be 200 km per hour and have it take 8 days.

I assume the author meant km/h or 200 km per hour as you have guessed, and if the satellite it 36000km high / 200km it would take 180 hours or 7.5 days.
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