Cleantech & EV'sNews

Bill Gates all but admits that he was shorting Tesla (TSLA)

February 24, 2021
After Tesla CEO Elon Musk claimed that Bill Gates has been betting against the electric automaker on the stock market, we have been trying to find out if it was true. Now Gates all but admits that he was shorting Tesla’s stock (TSLA). As we previously reported, Musk and Gates don’t always see eye to eye. Gates has previously made some comments about electric trucks like the Tesla Semi not…
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MobileNews

Huawei wearables will soon support third-party apps

February 24, 2021
While Huawei smartphones have been a hard sell across the globe due to hard US sanctions limiting Google Mobile Services access, the Chinese firm’s wearables division had grown substantially. One major criticism of Huawei’s LiteOS-powered wearables has been the lack of…
NewsPhotography

Sigma announces 28-70mm F2.8 DG DN Contemporary for L and E mounts

February 24, 2021
Sigma has announced its new 28-70mm F2.8 DG DN Contemporary lens for L and E mounts. The company says that its design is based on that of the 24-70mm F2.8 Art, and makes the bold claim that image quality will be comparable. As of now, the 28-70 is the smallest and lightest lens in its class, according to Sigma: it’s just 102mm (4″) long and weighs in at 470g (1lb). It has a total of 16…
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DefenseNews

The Lockheed-Aerojet deal hampers hypersonics

February 24, 2021
Recently, Lockheed Martin announced its intent to acquire Aerojet Rocketdyne to create a vertically integrated company that would, in effect, corner the hypersonic propulsion market. For Lockheed. this may be a good idea. However, in defending America, other factors must be…
NewsPhotography

Sigma 28-70mm F2.8 DG DN sample gallery

February 24, 2021
The Sigma 28-70mm F2.8 DG DN is a compact standard zoom for full-frame L- and E-mount bodies, designed from he beginning for mirrorless digital imaging. Potentially a highly attractive ‘step-up’ lens for mirrorless shooters, Sigma promises that image quality from…
AI & RoboticsNews

AI researchers detail obstacles to data sharing in Africa

February 24, 2021
AI researchers say data sharing is a key part of economic growth in Africa but that it faces a number of common obstacles, including the threat of data colonialism. The African data market is expected to grow steadily in the coming years, and the African Data Centre trade organization predicts the African data market will need hundreds of new datacenters to meet demand in the coming decade. In a…
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NewsPhotography

Why You Should Use a 100-400mm Lens for Landscape Photos

February 24, 2021
Photographer Michael Shainblum is known for some truly impressive landscape images and in previous videos has strongly advocated for the use of telephoto lenses. In this 10-minute video, he shows how he captured two days worth of images with mainly a Sigma 100-400mm. Before the pandemic last year, Shainblum had the opportunity to visit Yosemite just after a snowfall which gave him the opportunity…
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