Sepp Holzer lives on a mountaintop in Austria, where he casually but thoughtfully manages a fish farm that provides all of his food, clean water, income, and electricity through nothing but a series of carefully placed pond systems. Gravity pulls the water from pond to pond, and little micro-organism-eating fish are gradually replaced by bigger and bigger predatory fish until he has clean water and full-sized trout! It's so simple it might seem like magic, but it's actually cooler than that.
The graphene temporary tattoo seen here is the thinnest epidermal electronic device ever and according to the University of Texas at Austin researchers who developed it, the device can take some medical measurements as accurately as bulky wearable sensors like EKG monitors. From IEEE Spectrum: Graphene’s conformity to the skin might be what enables the […]
In ye olden days, a telephone user had to ask the operator to call the desired party and make the connection. Then the dial telephone empowered us all to, er, reach out and touch someone. This 1927 instructional film from the telephone company explains the basics: “The ringing signal is an intermittent burring sound telling […]
Do you remember the first time you used a remote control on your television set or favorite toy? It was incredible right? I can honestly say that making my sister believe I had telekinetic powers was fantastic! But as I’ve accumulated more and more remote controls in my life, I’ve become jaded. And then, I […]
With countless applications for modern life, artificial intelligence (AI) is one of the most in-demand fields of study in tech. Beyond modelling human decision making processes and learning abilities, AI can be used to analyze massive volumes of data and create complex interactive systems.This Machine Learning & AI for Business Bundle made mastering these concepts possible for […]
Computer hacking isn’t just something happening to the DNC. Major software companies need white-hat hackers to ensure the security of their products and users, and I came across a Computer Hacker Professional Certification Package that conveniently teaches those advanced IT techniques online.This course package will prepare you for various computer security certification exams with over 60 hours […]
One of the best ways to progress a career in project management is through earning recognized certifications. These certifications carry significant clout and don’t require expensive tuition or student loans. This Ultimate Project Management Certification Bundle is a great example of an affordable way to get ahead. It includes training for 9 certifications including PMP, […]