Scientists study the world as it is. Engineers modify the world to adapt to our needs. Artifact – an object … More
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Rove, rove, rove the moon
The moon rover, that dune-buggy, electric car that astronauts used on the moon, provides great motivation for exploring transportation on … More
rotational motion
Rotational motion transfer rotational motion from one place to another – pulley(animation) – pulleys are the same size. By crossing … More
Rosetta Mission
Rosetta Mission European Space Agency (ERA) – From low Earth orbit to deep space: sharing the excitement of human spaceflight … More
Roman road
Roman roads – the construction of an extensive system of aqueducts and roads, as well as large monuments, palaces, and … More
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