Regenerative brake – an energy recovery mechanism which slows a vehicle or object down by converting its kinetic energy into…
request feedback
Review an Engineering 4 Kids story page. Click here for review questionnaire Help! Look through this website. If you have…
research
Engineering research seeks improvements in theory and practice in fields such as (for example) high-speed computation, bioengineering, earthquake prediction, power…
radioactivity
Radioactivity – unstable atomic nuclei release subatomic particles. The phenomenon of radioactivity is observed in heavy elements such as uranium.…
Raspberry Pi
Raspberry Pi – a credit-card-sized single-board computer developed in the UK by the Raspberry Pi Foundation with the intention of…
re-engineering mosquitos
In a single year, there are 200-300 million cases of malaria and 50-100 million cases of dengue fever worldwide. So:…
reciprocating engine
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…
