Only science: 2011

Saturday, 3 September 2011

Famous Mathematicians / Aryabhatta

Aryabhatta

476 BC-550 BC India

Aryabhata was the first astronomer to make an attempt at measuring the Earth's circumference since Eratosthenes (circa 200 BC). Aryabhata accurately calculated the Earth's circumference as 24,835 miles, which was only 0.2% smaller than the actual value of 24,902 miles. This approximation remained the most accurate for over a thousand years.

Friday, 2 September 2011

What is Neo cube ? is it safe for Kids ?

Neo Cube Toys

Neo Cube is a group of powerful magnetized 216 balls (neodynum magnets) that can be made into any 3D or 2D shape you want. This is perfect as a present for anyone who loves solving puzzles.

There are infinitely many shapes that can be created. Once you start expressing your idea, you can spend hours of time fixing and upgrading until you are satisfied.

What is Neodynum Magnet ?

A neodymium magnet (also known as NdFeB, NIB, or Neo magnet), the most widely-used type of rare-earth magnet, is a permanent magnet made from analloy of neodymium, iron, and boron to form the Nd₂Fe₁₄B tetragonal crystalline structure. Developed in 1982 by General Motors and Sumitomo Special Metals, neodymium magnets are the strongest type of permanent magnet made.

Power Point Presentations in Physics Chemistry

Powerpoint Presentations (PPT)

Transistor working -download
Indian Famous Scientists PDF
Energy -download
Nuclear wepons -download
Nuclear reactors-download
Atomic Structure-download
Nuclear Fission and Fusion-download
LASER-download
X-Rays-download
Latest Displays LED LCD-download
NANOTECNOLOGY-download
Atoms simple-download
Ionic bond-download
Atomic Theory-download
DNA-download
Noble gases-download
Atoms-download
Diode-download
Gamma -download
Household Electricity -download
Big Bang -download
Acids and Bases -download
Infrared Rays -download
Microwaves -download
The science of color -download
U.V.Rays -download
X-ray -download
Chemistry Power Point Presentations

Famous Mathematicians /Srinivasa Ramamnujan

22 December 1887 -26 April 1920 (aged 32) Chetput, (Madras), India

Ramanujan Number/Hardy-Ramanujan Number

A common anecdote about Ramanujan relates to the number 1729. Hardy arrived at Ramanujan's residence in a cab numbered 1729. Hardy commented that the number 1729 seemed to be uninteresting. Ramanujan is said to have stated on the spot that it was actually a very interesting number mathematically, being the smallest natural number representable in two different ways as a sum of two cubes:

1729 = 1³ + 12³ = 9³ + 10³

^{91 = 6³ + (−5)³ = 4³ + 3^{3 (91 is divisor of 1729)}}

^{^{Masahiko Fujiwara showed that 1729 is}}

^{1 + 7 + 2 + 9 = 19}

^{19 × 91 = 1729}

^{Ramanujan Known for : Landau-Ramanujan Constant}

^{Mock theta functions}

Ramanujan Prime

Ramanujan's Sum

Wednesday, 31 August 2011

Green Ganesha Eco Friendly Ganesha Clay Ganesha

Use Eco friendly Ganesha

Eco friendly Ganesha

Clay Ganesha

Green Ganesha / Sand Ganesha

Lord Ganesha

National Level Science Exhibition ( Inspire Awards Exhibition ) New Delhi 2011 Selected Models

National Level Science Exhibition ( Inspire Awards Exhibition ) New Delhi 2011 Selected Models List

1) Rajasthan –Tesla Coil ( Gold Medal )

2) Assam – Miracle of pressure in JCB ( Silver Medal )

3) Jammu & Kashmir – Model for Mechanical JCB ( Silver Medal )

4) Punjab – Energy Saving Device ( Bronze Medal )

Regional Awards

Central India

Chattisgarh – Mixture run without electricity

Maharashtra – Energy Saver multi purpose winnoving machine from waste materials

North-East India

Sikkim – Tic Car

West Bengal – Controlling over loaded vehicles on the bridge using renewable source of energy

North – Haryana – UGV Ground vehicle

Andhra Pradesh – Producing Electricity with the help of salt water

Rajasthan – Ideal petroleum plant

North- East

Dependence of ‘l’ on water level

Haryana - Multi purpose Machine and new model of husk cutting machine

South Karnataka – Death free solution

Jharkhand – Transformation of energy

Maharastra – Home appliance control system

A.P – anti radiation shields to cell phones

Artificial Rain System

Saturday, 27 August 2011

Victory for Anna Government accept Anna's coditions

The eight-hour long extraordinary debate on the Lokpal issue Saturday ended with Finance Minister Pranab Mukherjee expressing "a broad sense of the house" that includes an in-principle acceptance of three key demands of Anna Hazare by the Lok Sabha.
No Voting, Government Agrees to Anna's Three Key Demands
A citizens' charter,
Lokayukatas in states and
inclusion of the entire bureaucracy -- should be built through a "most practical, appropriate and focused architecture".

Tuesday, 9 August 2011

National Level Inspire Awards Exhibition New Delhi ,Department of Science and Technology,Government of India,Selected Model for National Level

winning model at national level

Geo Thermal Energy

Petrol from waste Plastic

Modern Village

Electrical Energy from moving train

Conservation of Energy

Global Positioning System

Monday, 8 August 2011

State Inspire Awards Exhibition

Inspire Awards State Exhibition was held in Nirula Engineering College for women,Guntur on 6-8-2011 to 8-8-2011. 915 students were participated from twelve districts with their innovations.Most of the exhibited items showed the importance of saving energy conserving water, use of solar energy and wind energy, solid waste management, rainwater harvesting,Geothermal Energy models, air humidity measuring equipment, emergency lights, Periscope, cotton purifier, power saver, burglar alarm, solar stove, solar water Heater,Fire Alarm,Metal detector,Global Warming,Garbage,Magnetic Crane,Global Positioning,fluoride Problem,Automatic Lights were some of the models that were displayed on the occasion.