Science buffs: Motion, Force, Energy, Inertia, Pressure, Friction, Heat, Electricity, Magnetism, Nuclear energy, Light, Sound, Gravity
Mechanical mob: Ramp, Cutter, Lever, Wheel and axle, Gears and belts, Pulley, Turbine, Screw, Pump, Hydraulics
Design dynamos: Ergonomics, Blueprint, Prototype, CAD, 3-D printer, Artificial intelligence, Surveying
Material marvels: Concrete, Steel, Glass, Aluminum, Plastic, Smart materials
Master builders: Road, Dam, Arch, Dome, Bridge, Tunnel, Skyscraper
Mega machines: Car, Plane, Submarine, Helicopter, Rocket, Space drone, Maglev
Digital dudes: Bits and bytes, Microchip, Computer, Smart phone, GPS, Robot.
