31 Aug

Inventor preps robot to cut through ice on Europa

first_imgCredit: Stone Aerospace 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. © 2012 Phys.Org The plan is for it to leave its power plant on the surface of the moon, with a high-powered laser travelling down miles of fibre-optic cable. “Our modest goal over the next three years is to use a 5,000-watt laser to send a cryobot through up to 250 meters of ice,” Stone said at the Atlanta assembly. If successful, Stone’s concept would resolve obstacles in the way of studying what may lie beneath Europa’s ice. A report in Wired says those obstacles include (1) solar power being unable to work below the surface (2) batteries not lasting long enough (3) too large a footprint of a device and (4) international treaty restrictions that would forbid testing of a nuclear robot.Stone has a 2013-2014 dress rehearsal planned. He intends to test a working cryobot at Alaska’s Matanuska Glacier in June next year, where it will attempt to cut through ten to fifty meters of ice. Afterward the cryobot will try to get through 200 meters in Greenland, in fall 2014.Last year, Stone announced that NASA awarded Stone Aerospace four-year, $4M funding to continue development of the Valkyrie project, to design and field-test an autonomous ice penetrating cryobot. Stone, who has a doctorate in structural engineering, is no stranger to such ambitious undertakings. Generally, Stone is known for his inventions designed to enable humans to explore remote environments. He formed Texas-based Stone Aerospace to commercialize his systems for exploration. He and a team of researchers from several universities built DepthX, a deep-diving robot that went down Mexico’s deepest watery sinkhole. He and his team also took on a mission to Antartica. He is often characterized, however, as looking toward his ultimate goal, a probe that can go through miles of ice on Europa and then explore through the sea. What intrigues scientists about Europa, one of Jupiter’s moons, is that under its icy surface its expanse of water might harbor life. Robot plumbs Wisconsin lake on way to Antarctica, jovian mooncenter_img Explore further Citation: Inventor preps robot to cut through ice on Europa (2012, April 22) retrieved 18 August 2019 from https://phys.org/news/2012-04-inventor-preps-robot-ice-europa.html (Phys.org) — Robots are being developed all the time to do what we wish and to go where we can’t. This week, inventor Bill Stone told attendees at NASA’s Astrobiology Science Conference in Atlanta that he intends to get an autonomous robot ready to visit the icebound sea of Jupiter’s moon Europa, cut through the icy crust, and explore the waters below. He told the participants that his goal is to send his robot Valkyrie to Europa, where it will use lasers to cut through the ice to explore the waters below, collecting samples, in search of life. His company, Stone Aerospace, has been working on the six-foot by ten inch robotic cylinder called Valkyrie. last_img read more

31 Aug

Mamata makes Safe Drive stickers mandatory for vehicles

first_imgKolkata: Stressing the need to strengthen road safety campaigns in the state, West Bengal Chief Minister Mamata Banerjee today asked the transport department to ensure that every vehicle has ‘Safe Drive, Save Life’ stickers pasted on its front and back sides. The state government launched the ‘Safe Drive, Save Life’ drive in 2016 as part of its initiative to inculcate a “sense of safe driving and responsible road behaviour” among people. Banerjee, who inaugurated 20 state-run Volvo buses, 21 trauma-care ambulances and 13 wrecker vans here, said the transport department would involve children for the sticker campaign “as the motorists might be more receptive to their requests”. Also Read – Rain batters Kolkata, cripples normal life “Once the weather improves, we will rope in young boys and girls to paste the stickers on the front and the back sides of the vehicles at traffic intersections,” she said at the programme, in presence of Transport Minister Suvendu Adhikari and senior transport officials. The newly inaugurated Volvo buses would ply between district headquarters and Kolkata. The objective of the sticker drive is to drill the message of road safety in the minds of people, Banerjee said. Also Read – Speeding Jaguar crashes into Mercedes car in Kolkata, 2 pedestrians killed “The ‘Safe Drive Save Life’ stickers, in big fonts, will have to be pasted on two ends of the vehicles to instill traffic discipline,” she asserted. Talking about the new Volvo buses- ‘Banglashree Express’ – Banerjee said these high-speed vehicles would provide “comfortable and economic travelling experience” to the public. “Twenty new buses, each worth around 1.5 crore, have joined the fleet and six more will hit the road in the near future,” she said. The high-speed buses, connecting district towns with Kolkata, are being introduced at a time when debates over high-speed trains are doing the rounds across the country, the chief minister said, in an obvious reference to the bullet train project of the NDA government. “During flood-like situations, when rail tracks are inundated, buses can be of help to stranded people. Last year, during north Bengal floods, bus services turned out to be the only means of transport,” she said. The CM also said 80 electric buses would be introduced in greater Kolkata area before Durga Puja. Referring to the wrecker vans, the CM said, “The vans can be of great help after a road mishap, especially at places like Maa flyover in central Kolkata,” she said. Adhikari, on his part, credited the chief minister for the improved transport facilities in the state. The non-stop Volvo buses were introduced today to provide “comfortable and affordable” services to middle-class people, the transport minister added.last_img read more

31 Aug

Bridging cultural differences

first_imgIn an attempt to sort out friction between the communities, Khoj International Artists’ Association is presenting Coriolis Effect: Currents across India and Africa’ at Khoj Studios, in the national Capital, Beginning on August 28, Coriolis Effect is an international exhibition featuring works of artists from India and Africa. The exhibition, resulting from a month-long residency, seeks to activate the social, economic and cultural relationship and historical exchange which exists between India and the continent of Africa.  Also Read – ‘Playing Jojo was emotionally exhausting’Bernard Akoi-Jackson (Ghana), Ethiraj Gabriel Dattatreyan (Africa/US), Juan Orrantio (Bogota,Colombia), Amshu Chukki (India) and Insurrections Ensemble (India/Africa) are the artists who are participating in this exhibition.Sitara Chowfla, the program manager at Khoj said, “Stream of immigrants from the Indian Subcontinent, as well as migrants from countries such as Cameroon, Somali, Nigeria, Kenya, Afghanistan and Nepal, are residing in Khirki Extension. This hotpot of cultural difference has long been a source of friction between residents, often bubbling into acts of discrimination based violence.  Also Read – Leslie doing new comedy special with NetflixThis project has grown out of a series of encounters and conversations which took place in and around Khoj through 2014.”The works for the show were created during a month long residency where the artists sought to unpack notions of geography, memory, cultural exchange as well as the tension and fear of the ‘other’, through history. The Coriolis Effect will not only use the present context of 21st century migrations, but equally refer to various moments of exchange through history; from the recent past of the Non-Aligned movements in the 20th century, to the cultural relationship shared by Indians and Africans from the 1st century AD onwards.When: August 28-31Where: Khoj Studios, S-17, Khirkee ExtensionTimings: 11 am-7pmlast_img read more

30 Aug

Is Your Computer Being Held Hostage What to Do

first_img Opinions expressed by Entrepreneur contributors are their own. February 26, 2018 4 min read Free Webinar | Sept. 9: The Entrepreneur’s Playbook for Going Global Register Now » Imagine this: You want to pull out a certain file from your computer, such as last quarter’s profit and loss statement. However, instead of seeing this file, you see a message on your computer that says, “Computer compromise detected. To see the file, you must pay $500 to purchase software to decrypt the file.”Oh-oh . . . What you’re seeing is a form of malware called ransomware — and as we so often hear on the news, ransomware attacks happen more than you think. Ransomware informationSo how did you get this ransomware? Hackers distribute this type of malware in a number of ways, the most common way being through email.Related: 4 Ways Ransomware Companies Behave Like Legitimate BusinessesThe first thing I ask people who suspect ransomware is whether they have recently clicked an email link. Even if one of those links looks legitimate, like that says, “Upgrade your browser software by clicking here,” the effects can be devastating to your network and computer. Other methods hackers use include posing as law enforcement officials or as representatives of tech companies or government agencies. They also may prompt you to activate new software for data “protection.”So, what do you do?Now that you know what ransomware is and does, you should focus on how to prevent it from infecting your computers and what to do if you actually get a ransomware infection.First, never click on or pay anything when you see a ransomware notification or banner. Instead, wipe your drive clean and then restore your data. This is assuming you have your drive backed up. If not, you’re going to lose a lot of valuable information.Ransomware preventionThough an attack like this can be devastating, it is possible to prevent an infection from occurring in the first place. Do this by following these tips:Be suspicious. Consider making the firm decision to never open any attachment or click on any link from an email, even from a person you know.Utilize a browser extension that shows which websites may be malicious.Use both a firewall and security software.Back up your data regularly, and shoot for doing this every day. Seek out services that will back up your data for up to 90 days and save several versions of your files. This will help your company to recover your files before ransomware sets in.Related: Passwords Are Slowly Becoming a Thing of the PastRansomware usually attacks small businesses, and these sophisticated threats come from overseas. If your company becomes a victim of this type of attack, follow these tips:Tell the criminal you plan on paying the fee, but you need time to get the money together.Gather all of the correspondence.You can contact the police, but they may not do anything. Instead, contact your web-hosting provider.If you experience an extensive loss, consider contacting representatives at your nearest FBI branch, though they may do nothing, either.Handling computer virusesA computer virus is a file that copies itself, and then spreads to other devices. These threats often look like safe programs, but in reality, they are quite malicious. Symptoms of a computer virus include apps or programs that spontaneously open or close, and a computer that runs slowly.In addition, you may hear that others are receiving emails from you that you never sent.How to protect your company from virusesFortunately, you can protect your business from viruses in several ways:Don’t open any attachment, program or link found in an email unless it is something you are expecting. This includes messages from people you know. Hackers often send viruses by accessing a person’s address book.Don’t use a public wifi connection unless you also use a VPN, or virtual private network — or encryption software.Keep security software up to date, and pair it with a firewall.Use the most recent versions of your operating system and browser.Use administrative rights on your computer to prevent unauthorized installations.Train your staff on network and computer security. Make sure they also protect their personal devices.Back up your data on the network. If all else fails and everything is destroyed, you will have this backup to fall back on. Use two methods, such as a cloud and on-site system, to be safe.Related: Hackers Can Use Subtitles to Infect Your DevicesThough these tips are presented for businesses, you can apply them to home networks and computers, too. Anyone who uses a computer should understand how this malicious software works, and know how cyber thieves work. Only then should a network be trusted. Growing a business sometimes requires thinking outside the box.last_img read more