scientific

Why are there double train tracks on railroad bridges? Hey there!  Recently, a question has been bugging me, I'm sure a lot of you have noticed this too, but the train tracks on a bridge are always doubled up, like this: Note the rails are doubled instead of single. So, my natural reaction was writing a blog post about it.. And here we are, talking about trains After some research, two possible answers came up, both are extremely interesting and.. I think both are true! The uses of guard rails (check rails): 1. Double tracks reinforce sleepers (railroad ties) and prevent them from moving in and out of place: Sleepers/ties are defined as rectangular supports placed under and perpendicular to the rails. sleepers function to transfer the weight of the train to the rockbed below and also to hold the rails in place and at the correct gauge. The middle stuff are the sleepers/ties That being said, the main rails hold the sle...

Dimensions, Aren't They Fun? Howdy readers! Fission here to tell you the reality of the many dimensions. Please bare in mind the theoretical nature of this topic as it is impossible with modern science to physically examine other dimensions. Many people refute the concept of dimensions. These people are what I like to call, wrong. Typically, people dismiss their science fiction concept of what dimensions are. So, let me explain what's really going on. Look at the image below. Pretty boring, right? Wrong! What you see here is the first dimension! (Or a model of it...) This is not entirely accurate however. To truly represent the first dimension you would not be able to see the line as it would h ave no thickness. This is because the first dimension can only exist along the [x] axis (think graphically). The first dimension doesn't really do anything, so I'm going to move on. Below is a representation of the second dime...