A revolutionary design in metal-cutting blades has changed the metal-working industry. These blades don’t cut like a knife. Instead, the blade is fixed in one position while the metal to be shaped spins on a lathe. This new-style blade stays sharp six times longer than the old blade design. And where titanium used to make the old-style cutting blades dull almost the second they were used, the new blades last up to 30 minutes.This wonderful new blade was developed by two engineers who got the original idea from a rat. You see, rats’ teeth always have a sharp edge. Engineers learned that this is because their teeth are hard on one side and soft on the other. So as they wear, they always keep a sharp edge. Using this principle for metal-cutting has lowered costs and increased productivity, since the blades don’t have to be changed as often.Beginning in Job 39, God humbles Job with several chapters of questions about the wise designs found in the animal kingdom. God’s message is, “Job, if you think you’re so smart, who created all of this with such wisdom?”Even rats’ teeth are created with such wisdom that, once we learned the principle, our technology was greatly improved. In view of this, it doesn’t seem at all scientific to say that there is no Creator!Job 38:4“Where wast thou when I laid the foundations of the earth? declare, if thou hast understanding.”Prayer: Dear Father, help me not to think that I am wiser or smarter than I really am. Help me to seek Your wisdom and knowledge in Your Word, which is as high as heaven and as real as the creation. In Jesus’ Name. Amen.REF.: Self-sharpening blade has edge. Science Digest. Image: White domesticated rat, Envato + Rat teeth (overgrown), Alexey Krasavin, CC BY-SA 2.0, Wikimedia Commons.

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