Science Stories You'll Be Hearing About In 2019

[spacesailor]

I thought.

 

We only need five satellites to cover this globe of ours.

 

And a couple at the poles ! SEVEN ?

 

Perhaps they are going to Tether the other 443 in a line. So centrifugal force will push the against the tether & keep them in orbit longer. ( faster spin( like their adverts)) Can also help catch all that debris up there. LoL

 

spacesailor

 

 

[Marty_d]

Talking about tethers, I wish they'd invent a material strong enough to create a space elevator.

 

Just imagine that... instead of blowing tons of rocket fuel to lift a few hundred kg to orbit, an oversized lift car could do the same thing at 5 kph.

 

 

[spacesailor]

I Tried that with a Kite & a mile of string. Still fell to Earth when the wind died. LoL

 

spacesailor

 

 

[Marty_d]

I Tried that with a Kite & a mile of string. Still fell to Earth when the wind died. LoLspacesailor

Your kite string would need to be more than 36,000 km long.

 

 

[Old Koreelah]

With ultra-long lines the weight of the cable becomes a limiting factor. Before sonar, depth-sounding of oceans involved miles of heavy cable that could break under its own weight.

 

 

[spacesailor]

I must try it again with Fishing line. LoL

 

spacesailor

 

 

[nomadpete]

There's bound to be something on eBay that'll do it. But you have to be patient, it takes a month to get it delivered from china