Watch Bihar traffic police thrashed for stopping man from driving auto on

first_imgThe police personnel was thrashed because he had stopped the auto rickshaw driver for driving on the wrong side of the road.Twitter/ANIA traffic police personnel was thrashed by goons, including an autorickshaw driver and his friends in Muzaffarpur district of Bihar on Tuesday, March 26. The police had stopped the auto rickshaw driver for driving on the wrong side of the road.In a viral video that has been doing round on the internet, a group of men were brutally thrashing police and the onlookers didn’t bother to intervene. This is an incident of a complete breakdown of law and order in the state. The driver got agitated because the official was trying to stop him. He called his friends and assaulted the official. The incident took place at Aghoria Bazar Chowk, reported news agency ANI.#WATCH Bihar: An autorickshaw driver & his friends thrash a police personnel who stopped them from driving on the wrong side at Aghoria Bazar chowk in Muzaffarpur. The police personnel is admitted in hospital. Police is on the lookout for accused. (Note: Strong language) (26.03) pic.twitter.com/yIBz4D77AI— ANI (@ANI) March 27, 2019The injured police official is undergoing treatment at a hospital nearby. The incident took place in the Kazi Mohammedpur police station limits. The police have registered a case and a search operation has been launched to nab the accused. Further investigation is underway.OTHER INCIDENTSEarlier, a similar incident happened in Bihar, in which six Bihar police personnel were thrashed by alleged goons in Nawada district in the first week of March. The cops were in the vicinity to nab a few accused, who had allegedly abducted and raped two girls of Gaya district.In another similar incident, a man of African origin was brutally thrashed by a mob of locals after he engaged into an altercation with a traffic police personnel in New Delhi. The incident happened earlier this month. The video of this incident went viral on social media.last_img read more

Team suggests sublimating ice to propel CubeSats

first_img © 2015 Phys.org Explore further MIT lab developing ion microthrusters for cubesats Citation: Team suggests sublimating ice to propel CubeSats (2015, March 19) retrieved 18 August 2019 from https://phys.org/news/2015-03-team-sublimating-ice-propel-cubesats.html More information: Conceptual design of a low-pressure micro-resistojet based on a sublimating solid propellant, Acta Astronautica, Volume 108, March–April 2015, Pages 30–39. www.sciencedirect.com/science/ … ii/S0094576514005001AbstractIn the current and future trend towards smaller satellite missions, the development of a simple and reliable propulsion system with performance and characteristics in line with the typical requirements of nano-satellites and CubeSats plays a crucial role for enhancing the capabilities of this type of missions. This paper describes the design of a micro-resistojet using water stored in the frozen state (ice) as propellant, operating under sublimation conditions at low pressure. The low operating pressure allows for using the vapor pressure of ice as the only method of propellant feeding, thereby allowing for extremely low thrust and electric power usage. The results of an extensive set of numerical simulations for optimizing the thruster geometry in terms of power ratio and specific impulse produced are discussed. In addition, the design of the complete propulsion system is described. It makes use of a limited number of moving parts and two power sources, one in the thruster to increase the propellant temperature and one in the tank to maintain the propellant storage conditions. Results show that the proposed design represents an alternative option capable of meeting the typical requirements of small satellite missions by means of an intrinsically green propellant such as water, with the pressure inside the system never exceeding 600 Pa. Optimization results showed an optimum thrust to power ratio in range 0.2–1.2 mN/W for an expansion slot aspect ratio of 2.5.via Newscientist Tiny satellites that have earned the nickname CubeSats, have become very popular in recent years—their small size allows for many of them to be launched from one rocket, dramatically reducing costs. But they all have one thing in common—lack of a propulsion system. That means they are not able to maintain an orbital altitude, which dooms them to reentry after just a few months. It also prevents them from being sent out into deeper space, such as to the moon, or even to other parts of the solar system. Thus far, several projects have been announced with researchers looking to find a way to balance weight and size relative to the amount of thrust that can be generated. In this new effort the researchers think the solution is to use and ice and a solar collector.The team calls its system Ion Electrospray Propulsion System—it would work by taking advantage of ice sublimating in a space environment. The water molecules would be directed at a plate heated by solar power, which would cause them to move faster—directing them through a nozzle would generate just enough thrust, the team believes, to allow for controlling a CubeSat. The problem of course is how to keep the water frozen while a CubeSat is sitting on a launch-pad. The team does not have an answer for that but believe that if a solution can be found, their engine would be feasible—it would also require just five ounces of ice. That tiny bit of water might present another problem however, as it would account for ten percent of the allowable weight of a CubeSat, meaning there would be less for electronics or other gear. Also there is an issue of power utilization—heating the plate would take away from power that is currently used for other hardware.Whole fleets of CubeSats or CubeExplorers doing both academic and amateur research is an exciting proposition, perhaps if ice does turn out to be the best fuel for them, NASA or commercial rocket companies will start providing freezing compartments for whole crates of CubeStas as part of a package deal. This document is subject to copyright. Apart from any fair dealing for the purpose of private study or research, no part may be reproduced without the written permission. The content is provided for information purposes only. CubeSats launched from the International Space Station on 4 October 2012. Credit: NASA (Phys.org)—A trio of researchers affiliated with Delft University in The Netherlands, has come up with a new way to provide propulsion for CubSats—use frozen water as fuel. In their paper published in Acta Astronautica, the team outlines their design and suggest there is just one hurdle still standing in their way—a means of keeping the water frozen while a CubeSat is awaiting launch.last_img read more

7 Bangladeshi nationals held with dollars worth Rs 514 cr

first_imgKolkata: Seven Bangladeshi nationals were recently arrested at the Netaji Subhas Chandra Bose International (NSCBI) Airport with a large amount of foreign currency. Officers of Central Industrial Security Force (CISF) grew suspicious when the airport officials were checking bags.The money was spotted during the scanning of luggage. According to sources, on Wednesday morning, when the luggage of the flyers was being checked for a Dhaka-bound flight, the on duty Central Industrial Security Force officer had some suspicion about a few bags after he saw their images on the scanner screen. To investigate the matter, the officer decided to check the baggage physically. Also Read – Rs 13,000 crore investment to provide 2 lakh jobs: MamataAfter opening the luggage nothing suspicious was found. Later, during a thorough check a small false space were found at the bottom of the every luggage bag. Immediately, the bottom of the luggage bags were cut open and the Central Industrial Security Force officer found a huge amount of foreign currency inside them. Seven passengers were immediately detained and taken to the Central Industrial Security Force custody. They have been asked to submit valid documents in support of carrying such a huge amount of foreign currency. As they were not able to produce any document, the money was confiscated and all seven of them have been handed over to the customs authority. Later, customs authority arrested the accused persons. A source informed that the total amount of the seized money is valued at $7.43 lakh, which is worth Rs 5.14 crore. On Saturday morning, a Bangladeshi national identified as Alam Sah was arrested with $ 70,000 which is worth Rs 47.42 lakh. The dollars were hidden inside a false compartment at the bottom of his bag.last_img read more