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. 203 – Delicious Malicious Militias
Ep. 202 – Yellow Squash Chicken Livers
Ep. 201 – I Smelled God In The Wind
Ep. 200 – Egg Induced Slumber
Ep. 199 – Thumb Holes
Ep. 198 – You Can't Kill An Idea
Ep. 197 – There are more people dead than who are in love
Ep. 196 – What is the Meaning of Genius?
Ep. 195 – Diction Without Parallel
Ep. 194 – An Occurrence of Some Regard
Ep. 193 – Stem to Stern
Ep. 192 – Impromptu Feed For Nine
Ep. 191 – Preying on Compassion and Fear
Ep. 190 – An Oak Shall Spring Forth Maples
Ep. 189 – Chicken As A Segue
Ep. 188 – Droopy Unleashed
Ep. 187 – The Smell of Reason in the Morning
Ep. 186 – Scent Has Mass
Ep. 185 – Onomatopoetic Tools: A Glossary
Ep. 184 – I'll sing for my dinner
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