Here’s what the world would look like if we could see the invisible forces around us

Caroline Siede 7:16 am Fri Jun 16, 2017

Derek Muller of the YouTube channel Veritasium uses a nifty trick to make visible the invisible air currents, temperature gradients, and differences in air pressure around us. The process is called Schlieren photography and with the right equipment and some precision alignment, you can try it at home. As Muller explains:

I first saw a Schlieren imaging setup around ten years ago in Melbourne. I was immediately fascinated by the way I could see the warm air coming off my hand. I hadn’t expected the currents to be moving that fast or to be so visible. This was a tricky setup to get right because alignment is very important and here I’m just working with what I had lying around the house mostly (plus the mirror). For the best Schlieren photography, making sure the mirror is stable is essential. I want to improve my setup so the mirror doesn't wobble back and forth too much creating the pulsing light and dark sections of this video.

Possible sign of life on Venus

Astronomers reported today that they've detected phosphine in the atmosphere of Venus, a possible biosignature of life on the planet. The researchers from the Massachusetts Institute of Technology, University of… READ THE REST
Startling, beautiful, and weird close-up images of our Sun

Using Europe's largest solar telescope, GREGOR, researchers captured these incredible images of details on the surface of the sun. Above is a sunspot while the image below "reveals intricate structures… READ THE REST
Programmable, 3D-printed fabric that can "remember" its original shape and transform into new ones

Imagine that your jacket changes shape depending on the temperature or your socks can provide additional support with the push of a button. Harvard engineers created a new material using… READ THE REST
Short Post, just one paragraph

Dessert cheesecake wafer bear claw fruitcake. Fruitcake chupa chups donut candy canes marzipan. Apple pie sweet roll tart chocolate cake macaroon marshmallow carrot cake gummi bears sweet. Pastry sugar plum… READ THE REST
Save 50% on a 1-year subscription to Dashlane's premium password manager

We all know vital information about ourselves and our private digital accounts can be compromised by cybercriminals. However, many would be frightened to know just how compromised they and their… READ THE REST
The Bite Helper removes the itch of a mosquito bite in seconds

While mosquitoes have certainly earned their title as the deadliest animal on earth, their impact on most of our lives is usually a lot less consequential. But even though they… READ THE REST