GSLV-D5

GSLV-D5

Indian space science is waiting at the threshold of a new phase of mega satellite launches and exploration as the countdown for the GSLV-D5 rocket launch began at 11.50am on Sunday. Twenty-nine hours later, at 4.50pm on Monday, the rocket carrying telecommunication satellite GSAT-14 will lift off from Sriharikota, 100km north of Chennai.

GSAT-14, which weighs 1,982kg, will be used for telecast and telecommunication.

What makes the launch crucial for the nation is the use of an indigenous cryogenic engine as the upper stage. The first attempt to use an indigenous cryogenic engine on April 15, 2010 to power GSLV-D3 was a failure. With only one more Russian cryogenic engine left in the Isro arsenal, success of the indigenous technology using oxygen and hydrogen in extreme low temperatures as the fuel will propel several big ticket future missions including a manned project to space.

Isro senior scientists led by chairman K Radhakrishnan are monitoring GSLV-D5, whose strap-boosters started getting fuelled soon after the countdown. Liquid propellants are being filled into the second stage. Liquid hydrogen and liquid oxygen, which fuel the cryogenic engine will be filled around 9am on Monday. Scientists at the Satish Dhawan Space Centre told TOI that the rocket's health and weather conditions were fine.

India needs cryogenic engines to launch GSLVs that can carry payloads weighing more than three tonnes, which hold the key to future of telecommunication and space exploration. GSLV-D5 weighs 414 tonnes.

Since 1994, India has had 23 consecutive successes with the Polar Sateliite Launch Vehicles (PSLVs), an improvised version of which was used for Chandrayaan-1 in August 2009. However, PSLVs can carry only payloads weighing up to 1.5 tonnes to a geosynchronous transfer orbit (a highly elliptical orbit with the nearest point to earch about 200km and the farthest 42,00km) , and up to 3.5 tonnes to a low earth orbit of about 200km from earth. GSLV can carry payloads weighing 2.5 tonnes to a geosynchronous transfer orbit, and up to 5 tonnes to a low earth orbit.

DEVLOPMENT OF AGNI-II MISSILE

AGNI MISSILE SYSTEM 

The Agni-II is a medium range ballistic missile (MRBM) with two solid fuel stages and a Post Boost Vehicle (PB V) integrated into the missile's Re-entry Vehicle (RBV) The Agni's maneuvering RV is made of a carbon-carbon composite The Agni-ILIA is a more advanced version of Agni-II, albeit with more sophisticated and lighter materials, yielding a better range and operating regime On 17 May 2010, the trial was conducted with a special strategic command force (SSC) of nuclear-capable Agni-II ballistic missile, with a range of 2,000 kilometers from the Wheeler's Island off Orissa coast thus making Agni-II missile operational by army.

Range of Agni Missiles

Role of electronics.

Role of electronics.

everything that surrounds us has direct link to Electronics, from the very computers we use whether it be laptops, netbooks or notebooks which has millions of tiny electronic components on it like resistors, inductors, capacitors, logic gates and the likes to the calculators, appliances, gizmos, measuring devices, and gadgets to name just a few. Electronics truly molded our lives we have today, for without it, we might as well grimacing in the shackles of underdevelopment and stagnant society where progress is hardly felt as if we are in an isolated islands. Electronics is the barometer of how far humans have gone through if we use the advancement in technology as a yardstick of progress. The dawn of the new wave of the future is bound to fascinate the world once again, the microchips which houses thousands to several millions of semiconductor components that makes our computers do their functions and features is expected to undergo major transformation in the near future. The nano technology, will soon sweep the world and will soon break barriers between possible and impossible, the author of this hub will soon make a hub about this spectacular technology that deals with microscopic objects. 

CPU Cooler

 CPU Cooler

Cooler Master V8 GTS - High Performance CPU Cooler with Horizontal Vapor Chamber and 8 Heatpipes 

Cooler Master’s all-new Horizontal Vapor Chamber technology minimizes CPU hotspots and spreads heat evenly to all heat pipes; Triple Tower Heat sink with 8 High Performance Heat pipes maximizes cooling performance; Dual High Airflow PWM fans with Red LEDs for an aggressive look; Fan speed and noise can be fine tuned and customized for desired balance between performance and sound; Fans feature Cooler Master’s 4th Generation Polyoxymethylene (POM) Bearing for increased longevity (up to 160,000 hours) and is dustproof.

BMW i3 electric car

I think people will probably read too much into it (note that it was the analyst who laughed first, and laughter is contagious). I think Musk is sincere when he says that it's a good thing and that he hopes BMW keeps improving. After all, his stated goal with Tesla is to catalyze the industry, so he wants other companies to also make good EVs (there are easier ways to make money than to start a new car company and try to convince people to buy electric cars...). That's why he also partners with companies like Toyota and Daimler.
I think BMW's main problem with the i3 is that they caught a case of 'conceptcaritis'. If they had made an EV, built from the ground up to be electric, but that looked a bit more like a BMW 1 series or 3 series, or even like it does now but with fewer funky touches, I think it would feel more mainstream and less like a concept car. After all, the Tesla Model S, despite all its innovations, wouldn't look out of place parked next to most other cars in its price range.