Reciprocating engine – also often known as a piston engine, is a heat engine that uses one or more reciprocating…
recreational boating
Recreational boating Design – boat hull, structure, gear general – hull – mono, multi. structure, materials – wood, steel, fiberglass,…
railroad
Rail transport – a means of conveyance of passengers and goods by way of wheeled vehicles running on rail tracks.…
Radon detector
Radon Worldwide, naturally occurring radioactive radon gas seeps from rocks and soils, where it can accumulate in buildings at hazardous…
make recycled paper
Recycle paper To recycle paper you need: used paper hot water a large bowl an egg beater or fork 2…
radio
Pictured – An early transistor pocket radio by Motorola. The first Motorola brand automobile radio was produced in 1930. Motorola…
radar
Radar – a system that uses electromagnetic waves to identify the range, altitude, direction, or speed of both moving and…
pump
Pump – a device used to move gases, liquids or slurries. A pump moves liquids or gases from lower pressure…
quantum mechanics
quantum mechanics Laser – acronym for Light Amplification by Stimulated Emission of Radiation. Laser light is usually spatially coherent, which…
Python
python.org – Python is powerful… and fast; plays well with others; runs everywhere; is friendly & easy to learn; is…
questions
Isidore Isaac Rabi, winner of a Nobel Prize for physics, when asked why he became a scientist, replied, “My mother…
QR code
http://www.qrstuff.com/ A QR Code (it stands for “Quick Response”) is a mobile phone readable barcode. In its simplest sense think…
radial engine
How a Radial Engine Works AMAZING Cutaway in Motion
prosthetics
prosthesis (from Ancient Greek prósthesis, “addition, application, attachment”) is an artificial device that replaces a missing body part lost through…
protective clothing
Protective clothing material We usually think of bullet-proof vests and jackets as protective clothing. Some other forms of personal protection…
engineering 4 kids 