source Reddit. Update edit. Rotating Switch System used on steep gradient tracks like the Pilatus Railway in Switzerland. Cog trains usually travel on this steep railway using a Locher Rack System and trains only travel the speed of 9 kmh uphill and 10 kmh downhill. Rotating Switch System allows for the crossing of trains to traverse their passage. Thank you once again @niftyandinteresting stuff for your great research.
blessed to witness real love in my upbringing, witnessing men & women actually get along and uplift each other, build together, and prosper. gives me a positive outlook when it comes to relationships. i'm realizing that's not common in america so I don't take those examples for granted.
An analysis of a vast database of compounds has revealed a curious repeating pattern in the way matter composes itself.
Of more than 80,000 electronic structures of experimental and predicted materials studied, a whopping 60 percent have a basic structural unit based on a multiple of four.
What's so strange about this is that the research team that discovered this pattern couldn't figure out why it happens. All we know at the moment is that it's real and observable. It just evades explanation.