Have you ever wondered how those invisible threads made by spiders can be so strong? Spiders have an amazing ability to create super-strong webs. Well, that secret could be the key to helping researchers build very strong nanocables. Theoretically, such a carbon nanotube could be created. A single fiber could be invisible, but when multiple fibers are combined, the thread would be visible. Read about the research here in the journal Microsystem Technologies here.