Roman roads – the construction of an extensive system of aqueducts and roads, as well as large monuments, palaces, and … More
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rocket
Rocketry, 1926 – “Our only way off the planet—so far.” — George Dyson A rocket in its simplest form is … More
That’s Engineering
K-8 Engineering MOOC Explore . Create . Improve – Boston Museum EiE Engineering4Kids wiki information, short description, links What’s the … More
roller coaster
Roller Coaster – an amusement ride developed for amusement parks. A specialized railroad system, a roller coaster consists of a … More
retracting cat’s claw
structure and function of cat claw There are many examples of engineering in nature. A cat’s retractable claws make use … More
robotic staff
Henn-na Hotel in Japan – you’ll be greeted by a robotic staff that’s said to run 90% of the hotel’s … More
redesign Santa’s sleigh
Santa Claus arrives, accompanied by his elves, on his sleigh pulled by reindeer Traditionally, Santa’s Sleigh has been depicted as … More
reflection
Reflection – the return of light, heat or sound. Our focus here is on the reflection of light and the … More
refrigeration
Refrigeration, 1850s “Discovering how to make cold would change the way we eat—and live—almost as profoundly as discovering how to … More
refraction and lenses
Refraction – When light moves from one substance to another it changes speed and direction. That change in direction is … More
relative humidity
Relative humidity – The amount of water vapor in the air at any given time is usually less than that … More
regenerative braking
Regenerative brake – an energy recovery mechanism which slows a vehicle or object down by converting its kinetic energy into … More
request feedback
Review an Engineering 4 Kids story page. Click here for review questionnaire Help! Look through this website. If you have … More
research
Engineering research seeks improvements in theory and practice in fields such as (for example) high-speed computation, bioengineering, earthquake prediction, power … More
radioactivity
Radioactivity – unstable atomic nuclei release subatomic particles. The phenomenon of radioactivity is observed in heavy elements such as uranium. … More
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