Nouvelle Technologie

  Short Bytes : As data transfer or communication in electronic devices and its various systems involves dependence on bandwidth and power density, researchers at MIT have come up with the unique idea of electro-photonic system. This 3 mm by 6 mm system has a bandwidth density of 300 gigabits/sec/sq mm and is about 10-50 times greater than current packaged electrical-only microprocessors. M icroprocessors which can be simply defined as “CPU on a single chip “, finds large and diverse application in the market varying from digital watches, mobile phones, washing machines, computers, traffic control systems and so on. However, these circuits mostly make use of electrical circuits for the purpose of communication and transfer of information. We already know that! Shannon’s Theorem gives an upper bound to the capacity of a link, in bits per second (bps), as a function of the available bandwidth and the signal-to-noise ratio(SNR) of the link. The Theorem c...

Short Bytes:  Astatine, which is rarest element on Earth, has a half life of just 8.1 hours. Astatine is so rare that there’s less than 30 grams of it in the Earth’s crust. Let’s tell you more about it.O ur planet Earth never fails to surprise us with its manifold characteristics and unsolved mysteries. While some elements that Earth is composed of are found in great abundance, others are stunningly rare. For instance, Astatine is so rare that there’s less than 30 grams of it in the Earth’s crust. In fact, what more contributes to its rarity is that, till date, scientists could produce only 0.05 micrograms of it. This is owing to the fact that to use it, they need to produce it from the scratch. Astatine, which has derived it’s name from the Greek word for unstable- “astatos”  is a naturally occurring semi-metal that results from the decay of uranium and thorium. In its most stable form – astatine-210 – it’s got a half-life of just 8.1 ho...