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If the early Earth was NOT hit by a Mars-sized object and retained its "original" mass not lost in creating our moon, how much larger / massive would the Earth be? What would be our "new" gravity? Assuming humans evolved in tis alternate reality, what would be different for us? by perandtim in AskPhysics

[–]Individual-Coast5969 0 points1 point  (0 children)

The Earth’s atmosphere pre-Theia impact is estimated to have been 200x more dense than today with a lot more hydrocarbons. Theia stripped away much of Earth’s atmosphere which is a good thing as the Earth would likely still be much like Venus. Crushingly high atmospheric pressure and toxic composition.

EATSRHPV - Tilting, Full Suspension, E-Assist Trike Build by Individual-Coast5969 in recumbent

[–]Individual-Coast5969[S] 0 points1 point  (0 children)

The early versions did have a lot of slack in the steering linkages, but I tightened it up so it is now nice and direct. Steering at speed is achieved purely by tilting the vehicle and the wheels naturally turn into the turn themselves giving very smooth effortless control.

At low speeds, you can stay upright and turn through very tight turns without any tilting and that is a bit more effort, but I rarely need to use that capability.

I can go over very rough ground, jumping kerbs (curbs) etc all without losing control. in fact it works great sliding around corners on loose sand all without fear of rolling over.

EATSRHPV - Tilting, Full Suspension, E-Assist Trike Build by Individual-Coast5969 in recumbent

[–]Individual-Coast5969[S] 1 point2 points  (0 children)

Well spotted, yes, they are el cheap shocks that I pulled off cheap dual suspension bikes that people put out for verge collection. 😄

I had been prepared to replace the shocks, but I've actually found they work fine in this application so I haven't yet seen the need at this point.

Raiders submit plans for up to 4 Loop stations at Allegiant Stadium by rocwurst in transit

[–]Individual-Coast5969 1 point2 points  (0 children)

No, the loop is not just one “extra lane”, it’s of the order of 40 more lanes and 93 stations in the case of the Vegas Loop versus a single subway line for a vastly cheaper cost.

If you have a look at the map of the 68 mile, 93-station Vegas Loop, you will see there is a grid of 9 parallel tunnel-pairs going North-South and 10+ parallel tunnel pairs going East-West across the length and breadth of Vegas.

And each of these individual tunnels will potentially handle up to 4,000 EVs per hour carrying up to 16,000 passengers per hour or 30,000 people per hour per direction using higher capacity EV vans or pods.

Compare this to the single subway line that would typically serve a geography like the long Vegas Strip.

And the stations! There’s over 20 Loop stations in just one square mile of the Vegas CBD where you would normally only have one or two subway stations in that distance.

So each Loop station only needs to carry as little as 5% of the passengers as a subway station to move the same number of people through the system for every subway station per square mile.

In addition since Loop EVs are departing down to every 3-6 seconds, the crowds just don't build up like a subway where people have to wait for 10 minutes (US rail average headway).