i would like to ask:-
"what is the problem in present design so that we can have a capsule that can accomodate just people"
there is vaccum in tunnel we can have even a bigger capsule
plz answer in basic terms as i am just a graduate student
Sounds really cool. I had read about this sort of concept. And a less credible idea, but intriguing anyway, drilling straight down through the earth to the other side, and using only gravity to provide the needed acceleration and deceleration.
Comment: 1g refers to acceleration rather than force. It's 9.8 meters/sec/sec, or 32 ft/sec/sec. It should take just over 3 minutes of constant 1g acceleration to reach 4000 mph (=5867 ft/sec), from a standing start.
The force required to achieve that depends on the mass of these capsules.
I would think that any small shift in the soil surrounding these tunnels would, uuh, really spoil your day, if you're a passenger.
As we unveil EE Times’ 2015 Silicon 60 list, journalist & Silicon 60 researcher Peter Clarke hosts a conversation on startups in the electronics industry. Panelists Dan Armbrust (investment firm Silicon Catalyst), Andrew Kau (venture capital firm Walden International), and Stan Boland (successful serial entrepreneur, former CEO of Neul, Icera) join in the live debate.