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Today's Creation Moment

Sep
26
Plants Have Immune Systems
Malachi 4:2a
"But unto you that fear my name shall the Sun of righteousness arise with healing in his wings..."
People and mammals have a multi-pronged immune system. When a bacterial infection is detected, cells begin to release nitric oxide, which kills bacteria, and they begin a cascade of other defense...
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Crystalline Silk

2 Corinthians 4:7
“But we have this treasure in earthen vessels, that the excellency of the power may be of God, and not of us.”

Scientists have been studying the safety line used by the common garden spider to save itself when falling. This safety line is as strong as nylon and has twice as much stretch.

The drag line silk is only one of several kinds that the spider can make. Scientists report that the silk is made of sections that are crystalline and sections that are like rubber. This makes it both stretchy and strong. Amazed Crystalline Silkchemists note that usually when you make something stronger, you also make it more likely to break rather than stretch. Since spider silk is twice as strong as silkworm silk, why hasn’t it been used to make more things?

To harvest enough spider silk for study, scientists place a spider on a piece of cardboard. Then they bump the spider off the cardboard. As the spider makes the drag line silk, a scientist turns the cardboard to reel it in. One spider made half-a-mile of silk in ten minutes! This fact might give you a hint about why spider silk isn’t used to manufacture items. It’s too fine. In the early eighteenth century, an inventor did make gloves and stockings from spider silk. However, his experience showed that it would take more than half a million spiders to make a pound of silk!

The spider and its silk are engineering marvels that clearly show why we must rely on a Creator to explain the world in which we live.

Prayer: 
Lord, I thank You for the intricate wonders that surround me in Your creation. As I do my tasks, help me to put my best workmanship into them. Help me to do everything as my best offering to You. Amen.
Notes: 
J. A. Miller. 1984. “Spider Silk Stretch and Strength.” Science News, June 23, p. 391. Photo: European garden spider spinning its web. Licensed under the Creative Commons Attribution-Share Alike 3.0 Unported license.