Tuesday 27 September 2011

TATA Motors to introduce a car that runs on air

TATA air car - tata minicat The Air Car, called the MiniCAT could cost around Rs. 3,50,000 ($ 8177) in Indiaand would have a range of around 300 km between refuels.The cost of a refill would be about Rs. 85 ($ 2).


Here's some nifty bullet points for you.
  • The Air Car runs a specially developed piston engine that uses a new thermo dynamic cycle offering exceptional energy efficiency.
  • Compressed air is stored in carbon fibre tanks, at 300 bar (4,351 psi).
  • The CAT engine operates on four cycles: intake and compression, combustion, expansion, and exhaust.
  • Outside air is drawn into the compression chamber and compressed to 20 bar (290 psi). At the highest point of pressure (at ‘top dead centre’), this air reaches 400°C (centigrade), and, at that point, air from the storage tank is injected into the combustion chamber.
  • Since the injected air is much colder than the compressed air in the chamber, the injected air is heated instantaneously, causing a sudden expansion, which pushes the piston down (in an expansion stroke)
  • The air tanks fitted to the underside of the vehicle can hold 300 litres of compressed air, capable of driving the MiniCAT for up to 200km.
  • Using a household electrical source, it takes about 4 hours for the vehicle to refill its own compressed air tanks (a rapid three minute recharge is possible using an external high-pressure air pump.
  • The MiniCAT runs an electronically controlled continuously variable transmission (CVT)

Monday 26 September 2011

TIPS for EXAMS:For All Students

Study TimetableBEST of LUCK to All PSGI students for their So called MID-TERM exams....

Steps to be followed while planning for a study timetable 
  • Keep a systematic sleeping and eating time because having irregularities in it can become an excuse for not studying.
  • Your regular commitments should be clear in a list. Classes, work, family, sport and travel times should be managed before you make a timetable.
  • If you don’t want to get interrupted by your family and friends while studying make sure they know about your plans and study times.
  • Stressing yourself can be vital for your progress thus keep some additional time for relaxation and exercise in your study timetable. By such means you can prevent stress and negative attitude from building.
  • There should be a division of study hours based on learning and doing homework with a total of at least 3 to 4 hours daily. You can also divide the hours based on theory and practical lessons; it should be according to your convenience.
  • Keep your study timetable realistic as much as possible. Keep yourself prior and arrange the meetings in such a way that you get enough time for thyself. Like if you have some favorite television program do include it in your timetable.
  • There should be some spare study time to accommodate any unforeseen assignments and projects. The flexibility of study timetable is very necessary especially for the college students.
  • In case your time table is not working don’t hesitate to manipulate it. If you are making a study timetable for the first time make sure you revise and update your timetable every once or twice a week.

Sunday 25 September 2011

Toothpastes come laced with NICOTINE - carry as much NICOTINE as smoking 9 cigarettes!

Toothpaste girl     
A study by the Delhi Institute of Pharmaceutical Sciences and Research (DIPSAR) has found that many of the toothpaste manufacturers are adulterating toothpastes and tooth-powders with high quantity of nicotine.

“Colgate Herbal and Neem Tulsi, also a herbal product, surprisingly had 18 and 10 mg of nicotine, which is equivalent to the quantity found in nine and five cigarettes respectively,” Prof Agarwal added.

“Out of the ten brands of tooth-powders examined, six — Dabur Red, Vicco, Musaka Gul, Payokil, Unadent and Alka Dantmanjan — were found to contain nicotine. Payokil was found to have the highest 16 mg of tobacco, which is equivalent of what a person consumes after smoking eight cigarettes,” he said.

The findings were, however, strongly refuted by the manufacturers of some of the dental creams and tooth-powders named by DIPSAR. 

Nicotine levels in toothpastes