That's right, this principle is how almost every non-revolver repeating firearm cycles fresh rounds into the chamber after the previous round is discharged. Some, like our razor dispenser, require an independent mechanical means (the thumb) like a pump slide, a lever, or a bolt mechanism as shown above. Semi- and fully automatic firearms use the leftover pressurized gases from the previous round (bullet) to do the job, but it's all the same concept. This leaves us with 3 possibilities:- The United States is operating a covert weapons design base to support continued growth of the military-industrial-congressional complex.
- It's really just a convenient way to package razor blades and it minimizes emergency room visits.
- Mechanical Engineers boil all physical systems and components down to their most fundamental level, which makes everything relate to something else on some level or another.
My vote is Number 1 because, as www.defensetech.org informs us, the US has surpassed THE REST OF THE WORLD COMBINED for defense expenditures. Wifey would likely vote for Number 3, as she has to endure my little exercises like this on a regular, nay, constant basis. What do you think?

By the way, that picture up top is Arnold Schwarzennegger as Dutch in the movie Predator. After defeating a 7' tall intergalactic hunter in man-to-whatever combat, he truly was the last man standing. That may be a worthwhile post in the near future right there!