The Spoken Tutorial project is the initiative of the "Talk to a Teacher " project of the National Mission on Education through ICT, launched by MHRD, Govt of India. http://spoken-tutorial.org/
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Assignments for this tutorial
1. 03:15: In Scilab, enter the following Matrices:
A = ⌊ ⌋ 1 1∕2 ⌈1∕3 1∕4⌉ 1∕5 1∕6
B = [ ] 5 - 2, C = [4 5∕4 9∕4] 1 2 3
Using Scilab commands, compute each of the following, if possible.
1. A * C
2. A * B
3. A + C′
4. B * A - C′* A
5. (2 * C - 6 * A′) * B′
6. A * C - C * A
7. A * A′ + C′* C
Explain the errors, if any.
2. 04:15: From the video:
1. Find E(:, :)
2. Ex Read more...
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Assignments for this tutorial
Getting Started
1. 04:17: Perform the following calculations on the scilab command line:
√- √ - -5-+-1 --5--1 phi = 2 psi = 2
Find 1/phi and 1/psi.
2. 6:06: Verify Euler’s identity: Is eπi + 1 close to zero?
Compare with cos(π) + i ⋅ sin(π) + 1.
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 Every time a car brakes, energy is generated. At present this energy is not used, but new research shows that it is perfectly possible to save it for later use in the form of compressed air. It can then provide extra power to the engine when the car is started and save fuel by avoiding idle operation when the car is at a standstill
Air hybrids, or pneumatic hybrids as they are also known, are not yet in production. Nonetheless, electric cars and electric hybrid cars already make use of the br Read more...
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 A milestone in the history of renewable energy occurred in the year 2008 when more new wind-turbine power generation capacity was added in the U.S. than new coal-fired power generation. The costs of producing power with wind turbines continues to drop, but many engineers feel that the overall design of turbines is still far from optimal.
New ideas for enhancing the efficiency of wind turbines are being presented this week at the American Physical Society Division of Fluid Dynamics meeting in Read more...
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Wind turbines have a problem: Depending on the wind's force, the rotational speed of the turbine and thus of the generator changes. However, alternating current must be fed into the grid with precisely 50 (or 60) hertz. Typically the generated alternating current is first rectified and then transformed back to alternating current of the required frequency. Scientists have now developed an active transmission that makes this double transformation superfluous.
Most large wind turbines currently Read more...
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An Experimental Battery Providing Electrical Power From Living Processes of the Fermentation Bacteria.
Very easy to be made of plastic PVC pipe pieces 50 mm in internal diameter and about 100 - 110 mm long.
Seal one end of 12 plastic pipes with the same plastic sheet material cutting round pieces corresponding with an outside pipe diameter. Finish the seal gluing with acetone-based glue or pure acetone. Form this way 12 battery cells. Each cell ought to produce about 0.5 Volt of direct cur Read more...
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We are looking at developing Street Lights for college that work purely on Wind Energy.
The most important considerations for this project would be
1. Wind is unpredictable in every sense
a. The direction
b. The quantity of wind
2. Other aspects of self sustaining street light, can be borrowed from our solar street light.
So, the aim of the project should be to generate power even when there is almost no wind.
Have a look the link below, use chrome it will offer to translate to E Read more...
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 In just eight years, self-driving cars may be hitting the highways, allowing commuters to work, read, watch TV, nap -- or do just about anything else they can manage within the confines of a moving vehicle. Google has tested several such cars in California, and the only mishap that occurred in 140,000 miles was one of the self-driving cars being rear-ended at a stoplight.
While it has been rumored for some time, Google (Nasdaq: GOOG) announced Sunday is has been testing self-driving cars. T Read more...
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