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World's largest digital camera under construction

20.01.2015

The LSST wide-angle survey telescope-reflector will "see" billions of space objects, generating about six million gigabytes of unique data per year.

The LSST "Large Synoptic Survey Telescope" with a revolutionary 3200-megapixel camera is due to be built by 2020 on the 2682-meter El Peñón of Cero Pachón in northern Chile. Unlike analogues that take pictures of galaxies and nebulae, LSST will have an unprecedented wide viewing angle, and an international team of scientists is working on its creation.

The telescope's 20-ton mirror structure has now been completed and includes the largest convex mirror ever built. LSST will take high resolution images of the entire southern hemisphere sky every three days. In comparison, it would take the Hubble telescope about 120 years to survey such a large sector of the sky. As a result, astronomers will get time-lapse photography of the sky, which will allow them to track the movement of billions of celestial bodies and watch how galaxies collide, stars are born and die.

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Furnace for radio lovers 01.07.2015

With the transition of mass broadcasting to online mode, the use of radio frequencies has become the lot of taxi drivers (for listening to Road Radio) and employees of large logistics companies (for searching for goods using RFID tags). However, thanks to a new invention, radio waves will soon be able to return to every home - to heat food.

The American company Freescale Semiconductors is one of the pioneers in the production of semiconductor components. In its 65 years of existence, it has become a leading player in the automotive, embedded systems and communications equipment markets. At a technology forum just held in Austin, Texas, the firm unveiled the world's smallest single-chip module for use in the "Internet of Things" - a future computing network of physical objects ("things") equipped with embedded technologies to interact with each other or with the external environment.

Among such things, Freescale Semiconductors sees kitchen ovens. But not the usual microwave ovens, but ovens operating on radio frequency. Unlike microwave ovens, which use magnetrons, which generate microwaves when an electron stream interacts with a magnetic field, the Freescale oven, or rather, its prototype, uses radio frequency emitters. They are based on technology developed by the company years ago to power cell towers.

RF radiation allows for more precise control of cooking cycles, heat distribution and doneness.

According to the company, such an oven is able to quickly and evenly bring raw or frozen food to the desired condition. In addition, the same emitters are able to determine the degree of readiness of food. And the “radio oven” does not interfere with Wi-Fi, because it operates at much lower frequencies than the 2,4 GHz inherent in microwaves. The company's ambitions include partnering with supermarkets and turning the stove, modestly called Sage - "Sage", into the main node of the "Internet of Things". But for now, it's still a prototype.

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