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Amazon is offering the SiriusXM Roady BT In-Vehicle Satellite Radio Kit for $69.99 shipped. Down 30% from its normal going rate at Amazon, today’s deal marks a new low that we’ve tracked there and is also the first discount all-time at the retailer. Designed to deliver in-vehicle entertainment, the Roady BT satellite radio installs in your car and connects to your stereo through Bluetooth, 3.5mm aux, or over a built-in FM transmitter. You can choose to mount it via a magnetic vent or dash adapter and there’s an additional mounting system that’s sold separately should you need it. Plus, it comes with a three month free trial of Sirius XM or you could opt for 12 months of the brand’s Platinum Programming Package for $99. Keep reading for more.

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The post SiriusXM Roady BT in-car satellite radio kit lets you tune in anywhere for $70 (First sale) appeared first on 9to5Toys.

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How insect blood stops bleeding fast

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Image of a large green caterpillar against a backdrop of foliage.

Enlarge (credit: Weber)

What if human blood turned into a sort of rubbery slime that can bounce back into a wound and stop it from bleeding in record time?

Until now, it was a mystery how hemolymph, or insect blood, was able to clot so quickly outside the body. Researchers from Clemson University have finally figured out how this works through observing caterpillars and cockroaches. By changing its physical properties, the blood of these animals can seal wounds in about a minute because the watery hemolymph that initially bleeds out turns into a viscoelastic substance outside of the body and retracts back to the wound.

“In insects vulnerable to dehydration, the mechanistic reaction of blood after wounding is rapid,” the research team said in a study recently published in Frontiers in Soft Matter. “It allows insects to minimize blood loss by sealing the wound and forming primary clots that provide scaffolding for the formation of new tissue.”

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