Technobyte

Technobyte: Do your instagram photos show you are depressed?

Duo is a simple, fast one-to-one video calling app for everyone—whether you’re on Android or iOS, a fast or slow connection, in New York or New Delhi.

Duo is based on your phone number, allowing you to reach anyone in your phone book. And its simple interface fades away when you’re on a call, so it’s just the two of you. Duo calls are in crisp HD video (up to 720p) and audio.

Duo is optimized to work well even on spotty networks, so if bandwidth is limited, it gracefully adjusts quality so you’re still able to connect. It can also seamlessly transition calls between cellular and Wi-Fi, so you don’t need to worry about what network you’re on.

Duo has been built with with privacy and security in mind and all calls on Duo are end-to-end encrypted.

duo.google.com

Demo Africa kicks off this week at the Sandton Convention Centre. DEMO Africa is one of the flagship initiatives of LIONS@frica and aims to connect African start-ups to the global ecosystem.

DEMO Africa is the place where the most innovative companies from African countries get a platform to launch their products and announce to Africa and the world what they have developed.

It allows start-ups from all over Africa to meet VCs, investors, tech acquisition specialists, IT buyers and media from across the region and around the globe. The Start-ups are given an opportunity to launch their products to a tech eco-system.

In just two years of running, the DEMO African alumni have generated over $8 million in either investment, business or partnerships from the unique mix of positioning, opportunity (networking, fundraising), training and exposure that their launch pad offers.

www.demo-africa.com

Your mental health is reflected in the images you choose to post on social media, say researchers who have trained a machine to spot depression on Instagram.

Researchers at Harvard found that depressed individuals tend to post images that are bluer, greyer, and darker, and receive fewer likes, than those posted by healthy individuals.

Intuitively, we tend to link darker, greyer colours with negative moods and brighter, lighter colours with positive ones. Indeed, researchers have found that people suffering from depression prefer darker colours.

www.technologyreview.com

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