The document discusses solar power and its advantages. Solar power is the conversion of sunlight into electricity either directly using photovoltaics or indirectly using concentrated solar power. Photovoltaics convert light into electricity and were initially used for small applications but are now used for large commercial plants. The advantages of solar power include that it is a renewable energy source that does not run out, and using solar power can reduce electricity bills by offsetting energy usage.

2. WHAT IS SOLAR POWER
BY SAHIL BHATIA
0 Solar power is the conversion of energy from sunlight into electricity,
either directly using photovoltaics (PV), or indirectly
using concentrated solar power. Concentrated solar power systems
use lenses or mirrors and tracking systems to focus a large area of
sunlight into a small beam. Photovoltaic cells convert light into
an electric current using the photovoltaic effect.[1]
0 Photovoltaics were initially solely used as a source of electricity for
small and medium-sized applications, from the calculator powered by
a single solar cell to remote homes powered by an off-grid rooftop PV
system. Commercial concentrated solar power plants were first
developed in the 1980s. The 392 MW Ivanpah installation is the
largest concentrating solar power plant in the world, located in
the Mojave Desert of California.

3. ADVANTAGES OF SOLAR
POWER
0 1. Renewable Energy Source
0 Among all the benefits of solar panels, the most important thing is that solar
energy is a truly renewable energy source. It can be harnessed in all areas of the
world and is available every day. We cannot run out of solar energy, unlike
some of the other sources of energy
0
2. Reduces Electricity Bills
0 Since you will be meeting some of your energy needs with the electricity your
solar system has generated, your energy bills will drop. How much you save on
your bill will be dependent on the size of the solar system and your electricity
or heat usage. Moreover, not only will you be saving on the electricity bill, but if
you generate more electricity than you use, the surplus will be exported back to
the grid and you will receive bonus payments for that amount (considering that
your solar panel system is connected to the grid).

4. Yesterday’s Gizmo is today’s
junk.
BY JAY PANDIT
More things have changed in the last few decades than in any other period.
Many common-place utility gadgets have been dying off faster than one would
have imagined. In fact, in the past few decades, a number of technologies have
become so obsolete that it's difficult to even imagine we were, once upon a
time, so contended with them.

5. Here are some of those which have
vanished without a trace:
0 Floppy disks: Computer CPUs had a slot where this could be inserted. Text and pictures
could be copied on it and carried. It was notorious for its susceptibility to get infected by
viruses that got passed on to PCs when it was inserted. The most common 3-1/2 disk had
a storage capacity of 1.44MB. Now, these have been replaced by CDs DVDs and pen-drives
that have higher capacity to carry. Of course, with cloud computing catching on at a fast
pace, even these face extinction.
0 Pager: The user had a number to which someone could send a short message via the
paging company. It became very popular in the 1990s because it was the first portable
communication device for the ordinary consumer. Typically the message sent on pagers
were like. "call me on (some landline number )" or "reached home" etc. Pagers soon lost
out to mobile phones once they became affordable.
0 Valve radio One 'got stations' by turning the tuning knobs. The concept of fine tuning
never existed. Like a refrigerator, a radio had its place in a house; it was too big to be
portable. Often the radio used to be switched on right in the morning and switched off
only when it was realized that no one was paying any attention to it.

6. ADVERTISEMENT
BY–AADITYASHRIVASTAWA
0 Everyone is familiar with the world of advertising. You
switch on your radio or TV, you go to the market place or
you flip through the pages of a magazine or newspaper,
your attention is diverted by advertisements.
0 Advertisements help to give information as well as
publicise goods and products. A good advertisement
should have the following features:
0 [a] It should be attractive and eye-catching.
0 [b] It should be comprehensive though brief and carefully
worded.
0 [c] It must contain the advertiser’s name and address.
0 [d] Visuals and slogans may appear in poster/ bigger space
advertisements.

7. 0 Advertisements that appear in newspapers are either
classified or display advertisements.
0 Display advertisements must have a catchy headline
or a punch line. Such advertisements should be
attractive.
0 All Classified advertisements have a definite word
limit and appear under set headings such as situations
like vacancy, matrimonial, sale and purchases,
property, education, etc.

8. Difference between a poster
and a advertisement
A poster is different from an advertisement. It is
visually very attractive and is meant to catch the
attention of the people.
0 It is generally very brief, carries and illustration,
pictures or drawings which conveys the message
better than the advertisements which are meant to
publicise the goods.

10. •A renewable resource is a natural resource which replenishes to
overcome resource depletion caused by usage and consumption, either
through biological reproduction or other naturally recurring processes in a
finite amount of time in a human time scale. Renewable resources are a part
of Earth's natural environment and the largest components of its ecosphere.
A positive life cycle assessment is a key indicator of a resource's
sustainability. Some renewable resources are:- solar energy, water, electric
motors etc.

11. However the former Plant breeding research institutes took a different approach.
After the loss of the German colonial empire, important players in the field as Erwin
Baur and Konrad Meyer switched to using local crops as base for economic autarky.
Meyer as a key agricultural scientist and spatial planner of the Nazi era managed
and lead Deutsche Forschungsgemeinschaft resources and focused about a third of
the complete research grants in Nazi Germany on agricultural and genetic research
and especially on resources needed in case of a further German war effort. A wide
array of agrarian research institutes still existing today and having importance in
the field was founded or enlarged in the time.
There were some major failures as trying to e.g. grow frost resistant olive species,
but some success in the case of hemp, flax, rapeseed, which are still of current
importance. During World War 2, German scientists tried to use Russian
Taraxacum(dandelion) species to manufacture natural rubber Rubber dandelions
are still of interest, as scientists in the Fraunhofer Institute for Molecular Biology
and Applied Ecology (IME) announced 2013 to have developed a cultivar that is
suitable for commercial production of natural rubber.

12. Thank u !!!
0Slides By
0Sahil Bhatia
0Jay Pandit
0Aaditya Shrivastawa
0Aiyush Dwivedi
0Compilation By
0Khush Ramani