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17 Feb 17

There are many forms of energy surrounding us. These include the heat in the room, sunlight and one’s movements. All these normally go wasted. Scientists from the University of Oulu, Finland, have discovered a material which can simultaneously convert multiple forms of energy into electricity. This provides a great source to power wearable technology, ranging from smart watches to biometric sensors.

This material is a mineral that has a perovskite crystal structure. It has the right properties to simultaneously harvest energy from multiple sources. Perovskites are a group of minerals. Many of these depict properties for deriving one or two energy types at different times, but not simultaneously. One of them may be a good option for solar cells while another for temperature, and another for motion.

However, just one energy form is not always available. For instance, it may be cloudy, or you can’t move because you are in a meeting. This calls for multiple minerals to harness multiple energy forms. But that is bulky for a small, portable device.

This newly discovered wonder material is called as KBNNO. The details about it has been published in the journal Applied Physics Letters.  

Content: https://www.sciencedaily.com/releases/2017/02/170207142711.htm

Image: https://www.extremetech.com/electronics/203022-clear-smart-glass-that-generates-its-own-electricity

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More Cameras to Support Mars 2020 Mission

20 Nov 17

NASA's is very soon going to launch its very prospective Mars 2020 mission. The scientist of NASA has planned to use 23 improved versions cameras for creating sweeping panoramas, identify obstacles, and also for studying the atmosphere, and assist science instruments. These all together will provide wonderful and clear views during the rover's descent to the MARS. At first Mars Pathfinder went there only with five cameras in 1997.

Since that time there have been a lot of modifications and improvements have been done with cameras in terms of size, design, weight and quality. Mastcam, is going to be the the rover's main eyes during Mars 2020 mission that will include more colours and 3-D images for satisfying our knowledge. Mastcam-Z's stereoscopic cameras has the ability to support more 3-D images, which are ideal for the examination of geologic features and guiding potential space samples from a very long distances. The improved capacity of camera’s lenses will increase the time spent doing science and collecting samples on space during the mission.

For improving the telecommunications link the smart features have been added to the camera that will send not only 3D pictures but will also send high-speed video from there. NASA has planned to utilise the already existing spacecraft in orbit at Mars namely: the Mars Reconnaissance Orbiter, MAVEN, and the European Space Agency's Trace Gas Orbiter. They will be used as relays to support the cameras during the rover's first two years in space.


Content- www.sciencedaily.com

By- Anita Aishvarya

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Vikram A. Sarabhai - Father of India's Space Programme

19 Nov 17

Vikram A. Sarabhai is called as the Father of the Space Programme of India. He was the key person that was behind the launching of India's first satellite, Aryabhata in 1975. He was born in Ahmedabad, Gujarat, in a family of industrialists. He established the Equatorial Rocket Building Station at Thumba. It founded the Physical Research Laboratory (PRL) that was formally established at the M.G. Science Institute, Ahmedabad, on November 1947. PRL is actively involved in scientific research, planetary science and exploration programme.

Sarabhai initiated to develop interest for science and mathematics education in students, teachers and the general public. He laid the foundation of the Ahmedabad Textile Industries Research Association, which is a laboratory for Physics research. He also established the Indian Institute of Management. Under the guidance of the renowned scientist Dr. C.V. Raman, Sarabhai's study of cosmic rays proved that cosmic rays are a stream of energy particles. The rays reach the earth from the outer space, after being influenced by the sun, the atmosphere and magnetism on their way.

It helped in observing terrestrial magnetism and the atmosphere, the nature of the sun and outer space. Sarabhai was awarded with 'Padma Shri' in 1966. Posthumously in 1972 he was awarded with the prestigious 'Padma Vibushan'. Not only that, but he was also given 'Dr. Shanti Swarup Bhatnagar award' in 1962. He is the person who deserves the credit to launch India into space age and compete with other developed countries in this field.

Content- www.webindia123.com

By- Anita Aishvarya

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We Have an Answer Why You Lied Last Time?

18 Nov 17

Are you asking yourself why people don’t be honest? Considering the number of lies scientists have discovered as to why people lie on a day to day basis.Scientists have stated that often people lie because they don’t want to hurt others.In many cases, people twist the truth a little bit so that we can stand in a more positive light.

In addition to this the scientists said that very severe and pathological cases, people lie out of pure evilness or egotism in order to deceive other people. However, people also lied to themselves for instance when they face a cognitive dissonance and try to reestablish harmony within their minds.The research has also showcased that dishonesty and deceit might be a part of any long-lasting conversation.

The research was conducted by the psychologist Bella DePaulo, Ph.D. the researcher has showcased that the participants, who had to keep a daily diary about their untruthfulness, remembered on average that they had lie once or twice a day.Moreover, the study also indicated that the participants were not loyal in one-fifth of their conversation that lasted longer than 10 minutes.

Content- www.planetofsuccess.com

By- Priyanka Negi

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New Alternative of Electronics and Photonics Light Connection

17 Nov 17

On a standard 'CMOS' chip Electronics and light don't go well together. Researchers have introduced a light connection into the middle of a semiconductor chip.  After this discovery two circuits can communicate or it can be said that the worlds of electronics and photonics are connected. For doing this no special materials or manufacturing processes are required.

The light comes from silicon itself. It is a trial to make a LED out of silicon. There is a drawback of it that silicon only emits a tiny amount of infrared light, while a visible light is required by the detector made out of silicon. To deal with this problem they reversed the LED. In the avalanche mode where there is a very small current the LED will transmit visible light. To 'galvanically' isolate two circuits from each other in an optical link on a chip is a good idea. This method is much safe where we have to connect a circuit of low-voltage and low-current one, while the other is a high-current circuit.

The light source, detector and the light channel can be made using the technology that is utilized to develop the electronic circuits. The amount of light needed for a successful connection is also very less. This is very compact as an alternative of circuit of Electronics and Light.

Content- ww.sciencedaily.com

By- Anita Aishvarya

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Why Delhi Has Become A ‘Gas Chamber’?

16 Nov 17

There are a lot of key factors that have developed congestion in the lungs of the national capital. In the first week of November only, the air quality index reached “severe” category, thus hitting 448 on a scale of 500 for the second time this year.

One of the key factors that are not letting Delhi to breathe fresh air is smoke from rural kitchens. Director of UrbanEmissions, Sarath Guttikunda said that urban areas such as Delhi has to first address the issue of cooking, space heating and household air pollution.

The other contributing factor is vehicular exhaust. The Delhi Government reintroduced odd – even scheme to regulate vehicular movement. Next factor is crop burning that envelopes Delhi with thick smoke every winter. Industrial smoke is also responsible for such high toxicity.

A study conducted by Delhi Government said that nearly 98% of these pollutants are emitted by industries. Open Waste Burning and Diesel Generators have also played pivotal role in making Delhi a ‘Gas Chamber’.

By: Bhavna Sharma

Content: https://yourstory.com/2017/11/delhi-air-pollution-six-reasons/

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