I sewed the dress with silk thread.

This is the comparison of the toughness of the dragline spilk spun by 21 species of spiders.

So silk comes out of the spinnerets, and for those of us spider silk biologists, this is what we call the business end of the spider.

At the top of the screen, you're seeing the repeat unit from the dragline silk of a garden argiope spider.

It has a plain high collar, detachable sleeves and intricate buttons of twisted silk thread, set close together so that the fit is snug.

Even fossil spiders can make silk, as we can see from this impression of a spinneret on this fossil spider.

This is the silk that's used to make the frame and radii of an orb web, and also the safety trailing dragline.

But the Silk Road was a trade route, whereas knife edge diplomacy dominated Clinton s Asian tour.

We think that's because the dragline silk, which is used to make the frame and radii for a web, needs to be very strong.

Spiders use silk for many purposes, including the trailing safety dragline, wrapping eggs for reproduction, protective retreats and catching prey.

And then we have silk, Thai silk.

Fishing wire makes bad dental floss

To give you an idea of what a spider silk protein looks like, this is a dragline silk protein, it's just a portion of it, from the black widow spider.

And the most studied silk line of them all major ampullate silk.

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The dress is of silk.

The gown is made of silk.

Silk is expensive.

Silk, gray, those beautiful buttons.

Tom bought a silk rug.

Wireless adapters allow devices to connect to a wireless network.

There are many kinds of spider silk.

So this material is silk.

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We have blouses of cotton or silk.

Tom has a silk scarf.

Tom wore a silk shirt.

Where can I buy silk?

She became the new poster girl Sunsilk in 2011, starring in the commercial Silk Pro Natural.

Each of these silk fibers exits from the spigot, and if you were to trace the fiber back into the spider, what you would find is that each spigot connects to its own individual silk gland. A silk gland kind of looks like a sac with a lot of silk proteins stuck inside.

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Spider silk is almost entirely protein.

Think of hunting with silly string.

I gave my father a silk tie.

Most spiders use copious amounts of silk, and silk is essential to their survival and reproduction.

Pyriform silk glands make the attachment cement that's the silk that's used to adhere silk lines to a substrate.

There's no red thread.

Cut the red wire.

What silk biologists do is we try to relate these sequences, these amino acid sequences, to the mechanical properties of the silk fibers.

Do you see the bird on the telephone wire?

How does an individual spider make so many kinds of silk?

But what, exactly, is spider silk?

So we've made a silk card with penicillin in it.

So if the web was made entirely out of dragline silk, an insect is very likely to just bounce right off. But by having really, really stretchy capture spiral silk, the web is actually able to absorb the impact of that intercepted prey.

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