In reality, there are two reasons gravity trains do not exist. First, a lengthy transit distance would pierce the Earth’s mantle and traverse a region where rock is more fluid than solid. No materials are known that would withstand the tremendous heat and pressure in the inner core. Temperature is estimated as 5,700 K (5,430 °C; 9,800 °F), and pressure as high as about 330 to 360 gigapascals (3,300,000 to 3,600,000 atm). Secondly, frictional losses would be significant. Rolling friction losses could be reduced by using a magnetically levitated train. However, unless all air is evacuated from the tunnel, frictional losses due to air resistance would render the gravity train unusable. Evacuating the atmosphere to make it a vactrain would eliminate this drag but would require additional power. Such objections would not apply for solid planets and moons that do not have an atmosphere.
Ep. 219 – Cerebral Pragmatic Opportunity
Ep. 218 – Satin Jammy Jammies
Ep. 217 – A Snagged Fly Is Worth A Try
Ep. 216 – Kissed the Cheek of Cod
Ep. 215 – Take The Win
Ep. 214 – Ham-Toed
Ep. 213 – Acorn Pig Farm
Ep. 212 – Shananigans Malarky Extraordinaire
Ep. 211 – The Dominatrix of Prague
Ep. 210 – The Magic Cheeseburger Scenario
Ep. 209 – Foul Hooked
Ep. 208 – Where's My Trout?
Ep. 207 – Rules Change and No One Knows It
Ep. 206 – Picking Up Rose Petals
Ep. 205 – Older Than Ice
Ep. 204 – Shitbowl
Ep. 203 – Delicious Malicious Militias
Ep. 202 – Yellow Squash Chicken Livers
Ep. 201 – I Smelled God In The Wind
Ep. 200 – Egg Induced Slumber
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