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50% off your first blood test. Welcome back to another edition of Cool Stuff Ride Home where we have

some of the more interesting, intriguing, and cool stories from around the world and throughout

history. I'm Reggie Rizu alongside Marcus

Paff on today's episode, a pacemaker that can fit inside the tip of a syringe, and scientists

discover two alternatives to Osepic. On this day in history, France adopts the metric system.

That's all coming up on cool stuff. Turning now to Science Daily and new research out of Northwestern University, where

engineers have developed a pacemaker so tiny that it can fit inside the tip of a syringe,

believe it or not, and be non-invasively injected into the body.

Now, although it can work with hearts of all sizes, the pacemaker is particularly well suited to the tiny, fragile hearts of newborn babies with congenital heart defects.

Smaller than a single grain of rice, the pacemaker is paired with a small, soft, flexible, wireless, wearable device that mounts onto a patient's chest to control

pacing. When the wearable device detects an irregular heartbeat, it automatically shines a light

pulse to activate the pacemaker. These short pulses, which penetrate through the patient's skin,

breastbone and muscles, control the pacing. Designed for patients who only need

temporary pacing, the pacemaker simply dissolves after it's no longer needed. All the pacemaker's

components are biocompatible, so they naturally dissolve into the body's biofluids

...