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Better Bridges
A new kind of concrete
called Ductal will allow
bridges to hold more weight
and last longer. Made of a
mixture of sand, cement,
water, and small steel
fibers, it is 10 times more
expensive than traditional
... > full story
Concrete Canoes
Engineering students in the
20th annual American Society
of Civil Engineers national
concrete canoe competition,
show off their latest canoe
boat models. The concrete
canoes float because a cubic
foot of water weighs 62-poi ... > full story
How Safe Is This Bridge?
Engineers developed a spray
or paint that coats bridges
with carbon nanotubes,
allowing inspectors to check
for damages without
depending on visual
indications. The skin
... > full story
Unbreakable Bridges
A new bridge design replaces
reinforced concrete columns
and bars with steel tubes
filled with concrete. The
steel and concrete bind,
creating strong yet supple
columns For the bridge
pier's footing, additional
... > full story
Browse Science Videos
1 to 10 of 232 videos
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Civil Engineers Develop Inexpensive System to Assess Damage after Natural Disasters
A new wireless system assesses injury in a structure after it is hit by a natural disaster such as a hurricane. When a building shakes, sensors records the frequency of the movement. This data is ... > more -
Automotive Engineers Bend New Materials into Futuristic Shapes
New materials for car bodies may soon transform the auto industry. Auto engineers can mold these carbon-fiber-reinforced plastics into virtually any shape. The materials are both strong and light -- ... > more -
Engineers Guide Students To Apply Basic Principles To Toy Car Design
Students learned the principles of engineering and manufacturing when asked to design a toy car for a contest. They used computer design software to shape the car, then created wax and aluminum molds ... > more -
Chemists Steal Engineering Tricks from Sponges
Sponges are the homes of colonies of tiny marine animals, and wonders of miniaturized engineering. They employ complex structural arrangements, the strongest glasses known to man, and even ... > more -
Electrical Engineers Monitor Environment with Robotic Sensors
Fleets of robotic sensors, networking through thin cables, can track environmental changes such as biogeochemical cycles or loss of biodiversity, helping to manage wild lands. The technology is the ... > more -
Computer Scientists Test Safety Of Construction Workers In Virtual Reality Environment
Safety scientists developed a virtual environment that simulates the look and feel of walking on the elevated, barrier-free planks used in the construction industry. Their research is helping to ... > more -
Civil Engineers Improve Houses Against Hurricanes
Polystyrene blocks used to build the walls in the home have survived a direct hit from a tornado, and improved version used in houses incorporates concrete with steel reinforcing inside. On a ... > more -
Chemist Invents Fishing Line that Changes Color When Damaged
Ropes and fishing lines made of a new plastic that changes color when damaged or heated can let climbers and fishermen know when it's time to get a replacement. Made of a polymer mixed with a dye, ... > more -
Engineers Design Nails To Better Resist Natural Disasters
Geometry and mathematical calculations were used to design a next-generation nail for building homes that are twice as resistant to high winds and nearly 50 percent more resistant to earthquake ... > more -
Auto Designers Test Possibilities Offered by New Materials
New plastics may soon replace metals in auto bodies. Designers are beginning to discover a whole new world of possibilities offered by materials that can be bent into futuristic ... > more
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