It's pretty much an accepted fact that parents are going to worry about their kids getting to the bus stop safely until they reach a certain independent age. It used to be this meant Mom or Dad walking embarrassingly close by. Those dark days are gone with the breakthrough from one high-tech Dad who rigged up a quadcopter to follow and monitor his son's progress.

With more people choosing to ride bikes for their commute, more and more safety features for cyclists are hitting the streets as well. The latest device that has surfaced is created with powerful LED lights and two red lasers to create a highly visible instant bike lane, alerting motorists on how to safely navigate around them.

See this bike helmet? No? That's because it's invisible. No, really, it is: that hefty collar that the bicyclist (or whatever) in the above pic is wearing contains a helmet-shaped airbag that deploys on demand to save your skull, and spends the rest of its time out of the way and looking fashionable.

Having to shoulder a wounded comrade is never a question for soldiers, but having a method to do it more efficiently in close combat has been a needed innovation. A new device called an Injured Personnel Carrier (IPC) has now been designed to replace the old over-the-shoulder method by creating a sling — or human backpack — to free up a soldier's hands to navigate evacuation.