When it comes to light sources in medieval times, there weren't a lot of options beyond the sun. Besides fireplaces and lanterns, candles were also used to light homes at night — but unlike today, they were incredibly expensive and out of reach for most people.

Over on my Instagram page, I share photos of my life. I keep my profile private, but I'll add you!

Humans have utilized spider silk for millennia. It has been used by ancient Greeks to treat wounds and anglers as fishing lines. But, what makes it so strong, and how will it be used in the future of technology?

Up until the 1960s, the most powerful computers were analog. These mechanical behemoths were able to do relatively complex calculations without the use of microchips. But when the digital revolution came, this all changed. Now, as we reach the limit of current technology, scientists are returning to analog, and the way they're using it could change how you look at computers.

Gasoline engines typically provide a tremendous amount of horsepower. So, what if you put a gasoline-powered engine on devices that generally don’t need them? Well, one backyard scientist attempts to find out.

This year is looking up. If part of your growth strategy is adding new team members to your business, LinkedIn Jobs can help you find the right person quickly. To make things better, your first job post is free. Getting started is easier than ever, with new features to help you find qualified candidates.

Post a job with targeted screening questions, and LinkedIn will quickly get your role in front of more qualified candidates. Manage job posts and contact candidates in one spot — even from your mobile phone.