Printing on a Hair (03:35)
Our world is full of things too small for us to see. Advanced technology enables engineers to write on a single molecule.
Damaging Moon Dust (01:59)
Moon dust is one of NASA's biggest problems; space dust is fine and rough. Edgar Mitchell discusses dust accumulation on his lunar expedition.
Self-Cleaning Lotus Leaf (04:05)
NASA scientists research the leaf's properties to determine what stops it from getting wet or dirty. See how a treated tile resists dirt compared to an untreated one.
Gecko's Cling Ability (03:26)
This lizard is able to scale vertical surfaces and across ceilings due to hundreds of thousands of tiny hairs on the bottom of each tiny toe. Manufacturers hope this technique can be used to develop tape.
Spider Web Design (01:45)
See web construction with time-lapse photography.
Spider Silk Production (03:43)
Scientists pull 700 meters of silk from a spider in one continuous strand; see the spinneret organ magnified 12,000 times. Junction water droplets add web flexibility.
World's Strongest Fiber (04:17)
Experts test a bullet-proof vest. Learn what makes carbon fiber ten times stronger than steel. A stress test compares Aramid and carbon fibers.
Microbes in Daily Life (04:07)
Close examination of a couple's dinner, reveals invisible microbes in tap water, vinegar, in the carpet, and on cheese.
Lethal Power of Snow (02:08)
An avalanche can happen without warning; hear a skier's experience. Scientists use specialist probes to better understand snowpack.
Snowflake Bonding (04:49)
Snowflakes change shape when they land. See images of locked snow crystals; they create a secure snow pact. A microscopic change in the snowpack creates the potential for avalanche.
Projection of a Sneeze (04:18)
Caused by the compression of hundreds of muscles, a sneeze can travel up to 100 mph. The smallest of 40,000 droplets can travel as far as 40 meters.
Solar Storms (03:27)
Linked to magnetic activity of the sun, solar storms can wipe out electrical and communication systems worldwide. International scientists launch a solar telescope to better understand the solar surface.
Studying the Solar Surface (02:22)
The balloon carries the telescope 23 miles above the Earth. The mirror aligns with the sun and sends data back to the scientists; the most intense magnetic activity is in the sun's plasma.
Indispensable Plankton (04:55)
Plankton provides up to 50% of our oxygen and fuels all ocean life. See how their movement in water leaves a trail that attracts predators; global warming is changing that.
Credits: Off the Scale: Invisible Worlds (00:44)
Credits: Off the Scale: Invisible Worlds
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