ICBM Agni-V is most advanced missile in the Agni series.
India successfully test-fired nuclear capable surface-to-surface Agni-5 Ballistic Missiletoday, boosting indigenous missile capabilities and deterrence strength of the country. Agni-5 is the most advanced missile in the Agni series with a strike range of over 5,000 kilometres. Agni-5 was test-fired at about 9:54 am from launch pad number 4 of the Integrated Test Range (ITR) in Abdul Kalam Island, earlier known as Wheeler Island, off Odisha coast. During the test-fire, the sophisticated missile travelled for 19 minutes and covered 4,900 km. With the first testing of Agni-5, India had become a part of the super-exclusive club of countries with ICBMs or inter-continental ballistic missiles in 2012.
Here are 10 Facts about Agni-V Ballistic Missile:
Agni-5 is most advanced missile in the Agni series with new technologies incorporated in it in terms of navigation and guidance, warhead and engine. It has a range of over 5,000 km.
The redundant Navigation systems, very high accuracy Ring Laser Gyro based Inertial Navigation System (RINS) and the most modern and accurate Micro Navigation System (MINS) had ensured the missile reached the target point within few metres of accuracy, said an official of Defence Research and Development Organization (DRDO).
After four successful developmental trials, this was the first user associate test of Agni-5 missile, sources said.
Agni-5 missile has a high speed on-board computer and fault tolerant software along with robust and reliable bus. Its path is precisely directed by the advanced on-board computer and inertial navigation system.
The three-stage, 17-metre tall, two-metre wide Agni-5 missile is capable of carrying a nuclear warhead of about 1.5 tonnes.
The missile so programmed that after reaching the peak of its trajectory it will turn towards Earth to continue its journey towards the intended target with an increased speed due to the attraction of the earth s gravitational pull, DRDO official said.
The first two successful flights of Agni-5 missile in 2012 and 2013 were in open configuration. Agni-5 has higher reliability, longer shelf life, less maintenance and enhanced mobility.
At present, Agni series missiles that India has in its armoury are: Agni-1 with 700 km range, Agni-2 with 2,000 km range, Agni-3 and Agni-4 with 2,500 km to more than 3,500 km range.
The first test of Agni-5 was conducted on April 19, 2012, the second on September 15, 2013, the third on January 31, 2015 and fourth trial on December 26, 2016 from the same base.
With testing of Agni-5, India had become a part of the super-exclusive club of countries with ICBMs or inter-continental ballistic missiles after US, Britain, Russia, China and France.
India’s largest carmaker Maruti Suzukisaid today that government incentives will be needed to make electric vehicles (EVs) affordable as the country moves towards the eco-friendly solution for mobility. The company, which plans to launch its first EV in India by 2020, also said it will conduct a study to find consumer insights to prepare for the journey. Maruti Suzuki India (MSI) Chairman RC Bhargava said affordability is a major challenge that EVs will face and for them to be successful, focus has to be on manufacturing of batteries and other components within the country to bring down cost.
Maruti Suzuki Cars
“I think it will be required… My gut feeling is that yes, some kind of intervention would be required but I don’t know to what extent,” he told reporters when asked if government incentives would be needed to support electric vehicles transition in India.
Also Read: Maruti Suzuki Studying Market For Electric Vehicles
As electric vehicles are a new development for the Indian auto industry it would be difficult to say in details how much government support would be needed, he added. The company will conduct a study to understand more about consumer insights on electric vehicles, which will also help in estimating how much of government support will be needed, he said.
“Before that I can’t really say with any kind of confidence that this the kind of government intervention is required,” Bhargava said.
The aim of the study would be to find out as to what is the ground reality, where people park their cars and charging infrastructure and what is their thinking about EVs, he said. “It will gauge what average consumer thinks about EVs. This survey is going to provide us the first reliable data from the ground. We will start it within two to three weeks and by about end of February we would have some authentic basis to answer queries on EVs,” Bhargava said.
Stressing on the need for cost of electric cars to be within the reach of consumers, he said, “75 per cent of cars are small cars. How to make small cars electrified and affordable?
“I think this is one of the challenges which we will have to face because making an affordable large car is different from making an affordable small car. We need to keep that in mind. So what kind of government support, policy is required needs to be worked out.”
The government has set eyes on 100 per cent EVs for public mobility and 40 per cent electric for personal mobility by 2030. In a white paper submitted to the government, auto industry body SIAM had proposed 40 per cent of all new vehicles sold in the country to be electric by 2030 and 100 per cent by 2047.
When asked about MSI’s EV launch plans, he Bhargava said the first one will hit the market by 2020 and the company will also set up charging stations. On the future of conventional internal combustion (IC) engine vehicles, he said it will continue to grow.
The company has done an assessment, assuming an annual growth rate of 8 per cent between now and 2030, that 71 million cars will be sold, of which 14.4 million will be electric and 56.6 million will be IC vehicles, he said. “So, conventional cars will continue to be four times that of electrics,” he added.
Reliance Industries Limited (RIL) Chairman Mukesh Ambani took the nation by storm when he announced to launch Rs 1500 Jio Phone. But, now a report is doing the rounds that telecom giant Airtel is coming up with a Rs 1000 phone to take on rival Jio. According to a report in Phone Radar, Airtel is coming up with a 4G feature phone to give a competition to Reliance Jio 4G feature phone. Moreover, Phone Radar report claims that Airtel may join hands with Micromax or Intex for the manufacturing of the 4G feature phone. If this happens, it will be a win-win scenario for phone users as the fierce competition between the two telecom giants – Airtel and Jio – will eventually give users a big benefit as there will be no monopoly of any telecom provider. Mukesh Ambani on Friday had announced the launch of Jio Phone, offering life-long free voice calls bundled with 4G data streaming at an effective price of zero.
Jio phone, targeted at 50 crore feature phone users in the country, will be available for pre-booking from August 24 on payment of a refundable security deposit of Rs 1,500. The JioPhone will be available for user testing in beta mode from August 15.
This deposit will be refunded after 36 months on return of the phone, Mukesh Ambani had said, adding that the price of the phone will be effective zero.
Reliance Jio, the fourth-generation telecom arm of Reliance Industries, will provide unlimited data on the phone for Rs 153 per month.
Ambani had taken the telecom sector by surprise with free voice calls and data last year. Jio already has 125 million users since its launch in September last year.
It’s tempting to stare at the sun during a solar eclipse, but if you try to do so without protection, you could damage your eyes. This image of a partial eclipse in 2012 was taken by NASA’s Solar Dynamics Observatory satellite. (Courtesy of NASA/SDO and the AIA, EVE, and HMI science teams)
On August 21, North America will experience the first total solar eclipse visible across the continent in nearly a century–and, while it may seem illogical, this period of semi-darkness is an important time to practice sun safety.
That’s because while during an eclipse, you won’t want to tear your eyes away from the show, staring directly at the sun can lead to solar retinopathy, a condition where light floods the eye’s retina. In 1999, 45 patients visited an eye clinic in Leicester, England, after viewing a solar eclipse without proper eyewear. About half of the patients suffered from eye pain; the others reported impaired vision. Although these eclipse watchers were not totally blinded, several incurred long-term damage.
The United States hasn’t experienced a total eclipse since 1979, and that one only passed over a small swath of the Northwest. This year, in contrast more than 500 million people in North America, plus parts of South America and northwestern Europe, will be able to see at least a partial eclipse. Those within a 70-mile wide pathbetween Oregon and South Carolina will witness a total eclipse.
A partial eclipse occurs when the moon blocks part of the sun from view. A total eclipse, in contrast, is when the moon completely blocks the sun. “Totality,” the part of the total eclipse when the sun is completely covered, lasts only around two minutes.
Most people in the continental United States live within a one- to two-day drive of the total eclipse’s path. Madhulika Guhathakurta, the lead program scientist for NASA’s “Living With a Star” initiative, says the breadth of the path makes the eclipse accessible to everyone. She says observing a total eclipse is transformative: “It’s akin to the way astronauts describe their first trip to space. You’re just so in awe of nature.”
To view the solar eclipse, you’ll need proper equipment. It may seem odd to don protection in the semi-darkness of a partial eclipse, but staring at the sun can cause retinal injury. The only time it’s safe to look at the sun without protection is during totality. Keep your equipment on hand, and put it back on when the sun starts to reappear.
Opt for gear featuring ISO-approved solar filters, which are about 100,000 times darker than everyday sunglasses. The American Astronomical Society’s website includes a list of manufacturers that have certified their products meet the ISO 12312-2 standard. If you purchase equipment from other outlets, double check that their merchandise meets ISO standards.
Whether you’re a stargazing neophyte or dedicated astronomer, this gear will help you make the most of a spectacular event.
Eclipse glasses and handheld viewers
Eclipse glasses look like hybrids of 3-D movie glasses and sunglasses. As Guhathakurta explains, these glasses have the added protection of a solar filter. Whereas sunglasses only block UV rays, eclipse glasses also cut off visible light.
If you’re a casual observer or part of a large group, you’ll like these glasses’ low prices and bulk packaging. You can buy a pack of five paper glasses from Rainbow Symphony for around $12. If you want a sturdier option, try these plastic glasses from American Paper Optics. And feel free to go for style: TSE17 has a $5.05 stars-and-stripes five-pack, and American Paper Optics features everything from Bill Nye glasses to astronaut-themed frames.
Looking for something between basic glasses and high-tech binoculars? Check out this handheld viewer from Celestron. For $9.95, you’ll receive two viewers with 2x magnification capabilities and a pocket eclipse guide.
Binoculars and telescopes
Binoculars and telescopes are pricier than eclipse glasses and handheld viewers but can be worth the investment. They feature a higher magnification, but higher magnification results in a shakier image––as power increases, the equipment becomes more sensitive to its holder’s small hand movements.
Binoculars are rated with two numbers. The first number is the magnification, the second is the aperture—the diameter of the front lens, measured in millimeters. If you’re buying a pair of binoculars and plan to use them for other astronomy viewing, the bigger the aperture, the better, but bigger lenses also mean heavier equipment.
The following options offer a range of viewing strengths. Celestron’s EclipSmart binoculars feature non-removable solar filters, so you’ll only be able to use them for solar viewing. A 10×25 pair (10x magnification and 25mm aperture) costs around $35, while a 10×42 pair costs just about twice as much. A cheaper option is Lunt’s mini SUNocular. A 6×30 pair costs $29.95.
If you prefer binoculars with removable solar filters, Meade has a $69.99 10×50 pair that works for both solar viewing and nighttime stargazing. Once you remove the solar filters, the binoculars will operate like a normal pair.
Telescopes offer some of the best eclipse views, but you’ll pay more for added detail if you want an advanced model. A basic lightweight option is the Explore Scientific Sun Catcher 70mm telescope. It costs $59.99 and can be used during both the day and night. A more advanced option is the $99.95 Celestron EclipSmart telescope. It offers 18x magnification, 50mm aperture and non-removable solar filters.
Another choice is the Meade EclipseView telescope. The cheapest model is a $79.99 82mm reflecting telescope designed for on-the-go use. A sturdier long-term bet is the 76mm reflecting telescope, which costs $129.99. Both models feature removable solar filters and are suitable for solar and nighttime use.
Add-on solar filters
Another category of eclipse viewing gear is add-on filters. These can be attached to binoculars, telescopes and cameras not originally designed for solar viewing and are mainly used by experienced observers. Similarly to eclipse-specific gear, add-on filters prevent retinal damage. They also protect your equipment’s optics from the heat of the sun, as the intensity of an eclipse can damage gear designed for nighttime observing.
Filters are typically made of metal on glass (sturdy but most expensive), aluminized polyester film (also known as Mylar) or black polymer (also used in eclipse glasses). Rainbow Symphony sells black polymer and silver Mylar filters starting at $19.95. Thousand Oaks Optical and Orion offer higher-end filters ranging in price from $22 to $150-plus.
If you want to view the eclipse without spending money on special equipment, you’re in luck. Stand with your back to the sun, and use your hands, a hole-punched index card or even a patch of leaves to create a tiny opening. As sunlight flows through the empty space, an image of the sun will project onto a nearby surface. For more detailed instructions, visit the American Astronomical Society’s pinhole projection page.
Guhathakurta’s final words of advice are simple: During the partial eclipse, “do not look at the sun without glasses on, but absolutely look at the total solar eclipse without glasses on. These are two binary events. When you wear glasses and you cannot see anything anymore, that’s totality.”