1. RAILGUNS
Precise, devastating, silent and awesome. Railguns are quite famous in futuristic-fictional animated works. Little do people know that it is now in use by the US Navy. It can fire a projectile that reaches speeds of Mach 7, seven times the speed of sound, without any propellant or explosive.
2. MECHANIZED EXOSKELETONS AND MOBILE SUITS
Ironman, Gundams and the Space Marines are all famous for their futuristic mechanized suits. Although lacking the ability to fly, various real world exoskeleton prototypes are already deployed and sold. DARPA recently released a prototype designed for soldiers while Japan is selling a Gundam (giant mobile suit) on Amazon for $1 million.
3. KATANA
Wielded by a capable Samurai, the katana proved to be the deadliest slashing weapon of its time. Never losing its edge; the construction of this curved-edge blade is, in itself, an art. One of the few things that both nerds and warriors alike, would want to have.
4. ULFBERHT
If the Orient has its Katanas, the Western world can be proud of the Ulfberht. Aside from their long boats and ferociousness, the Vikings toppled their foes through superior weaponry. Modern day analyses revealed that the Ulfberht steel was far ahead of its time and can compare to today’s high-grade steel.