Se7en_speed
Se7en_speed t1_j8la0su wrote
Reply to comment by BraxJohnson in 2 years later, this is still one of the most incredible evenings of my life | Yosemite National Park, CA, USA | [OC] [3710x5565] by CameronKelsey
Make sure you have a reservation to get into the park!
Se7en_speed t1_iw7eo1w wrote
Reply to comment by e2346437 in BU proposes three new buildings as part of $1-billion campus upgrade; also wants to start looking at building over the turnpike by EnjoyTheNonsense
Drop a line to the FD?
Se7en_speed t1_j943vee wrote
Reply to comment by Trpdoc in Man dies after touching 3rd rail at MBTA's Downtown Crossing station by riski_click
So an actual answer. There are two rails that the train rides on, these are a few feet apart and you can see them if you look down at the tracks. These are just metal and would be safe to touch (if there isn't a train coming). On heavy rail subway lines (not the green line) the train gets power from an energized third rail that is slightly to the outside of these two riding rails. It's also slightly elevated off the ground so that it doesn't short circuit to the ground. That is how you can tell which one is the third rail.