HD CAMCODER WITH PROJECTOR

3M Shoot ‘n Share HD
Camcorder with Projector
Product description
Create and share instantly. The next generation
3M™ Camcorder Projector is a camcorder, camera
and projector, all in one. Create stunning HD video
and photo content, then project and share it
instantly — anywhere! See it. Believe it. Make it
possible. Instant projection. The only connector is
your finger. No downloading. No syncing. No
waiting. Just press a button to start the show.
And no more passing around a small screen — the
up to 65″ projected screen means there’s room for
everyone. Any surface is a screen. Now this is
mobile entertainment. Project your image on a
ceiling, a wall or even a T-shirt. Record a day at
the beach and play back the highlights over
cocktails — on a cocktail napkin! Works with other
devices, too. Connect and project to enlarge your
small screen. DVD players. Gaming consoles.
Everything gets bigger with a simple connection.
Sleepover in the backyard? Hook it up to a
portable DVD player and project a movie right on
the tent wall. User-friendly interface. It has “easy”
all buttoned up. There’s a button for the camera.
There’s a button for the camcorder. There’s a
button for the projector. A few more for onscreen
scrolling. And you’re done.

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Maam

Leat cost of projects done by isro
See the by seeing these photos we can easily understand 

Compared to american NASA isro done cheap projects with successful manner

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3G Technology

3G TECHNOLOGY 

3G, short for third Generation, is the third generation of mobile telecommunications technology.[1]

3G telecommunication networks support services that provide an information transfer rate of at least 200 kbit/s. Later 3G releases, often denoted 3.5G and 3.75G, also provide mobile broadband access of several Mbit/s to smartphones and mobile modems in laptop computers.

3G finds application in wireless voice telephony, mobile Internet access, fixed wireless Internet access, video calls and mobile TV.

This is a set of standards used for mobile devices and mobile telecommunication use services and networks that comply with the International Mobile Telecommunications-2000 (IMT-2000) specifications by the International Telecommunication Union.[2] 3G finds application in wireless voice telephony, mobile Internet access, fixed wireless Internet access, video calls and mobile TV.

Several telecommunications companies market wireless mobile Internet services as 3G, indicating that the advertised service is provided over a 3G wireless network. Services advertised as 3G are required to meet IMT-2000 technical standards, including standards for reliability and speed (data transfer rates). To meet the IMT-2000 standards, a system is required to provide peak data rates of at least 200 kbit/s (about 0.2 Mbit/s). However, many services advertised as 3G provide higher speed than the minimum technical requirements for a 3G service. Recent 3G releases, often denoted 3.5G and 3.75G, also provide mobile broadband access of several Mbit/s to smartphones and mobile modems in laptop computers.

The following standards are typically branded 3G:

the UMTS system, first offered in 2001, standardized by 3GPP, used primarily in Europe, Japan, China (however with a different radio interface) and other regions predominated by GSM 2G system infrastructure. The cell phones are typically UMTS and GSM hybrids. Several radio interfaces are offered, sharing the same infrastructure:
The original and most widespread radio interface is called W-CDMA.
The TD-SCDMA radio interface was commercialized in 2009 and is only offered in China.
The latest UMTS release, HSPA+, can provide peak data rates up to 56 Mbit/s in the downlink in theory (28 Mbit/s in existing services) and 22 Mbit/s in the uplink.
the CDMA2000 system, first offered in 2002, standardized by 3GPP2, used especially in North America and South Korea, sharing infrastructure with the IS-95 2G standard. The cell phones are typically CDMA2000 and IS-95 hybrids. The latest release EVDO Rev B offers peak rates of 14.7 Mbit/s downstream.
The above systems and radio interfaces are based on spread spectrum radio transmission technology. While the GSM EDGE standard ("2.9G"), DECT cordless phones and Mobile WiMAX standards formally also fulfill the IMT-2000 requirements and are approved as 3G standards by ITU, these are typically not branded 3G, and are based on completely different technologies.

A new generation of cellular standards has appeared approximately every tenth year since 1G systems were introduced in 1981/1982. Each generation is characterized by new frequency bands, higher data rates and non-backwards compatible transmission technology. The first release of the 3GPP Long Term Evolution (LTE) standard does not completely fulfill the ITU 4G requirements called IMT-Advanced. First release LTE is not backwards compatible with 3G, but is a pre-4G or 3.9G technology[citation needed], however sometimes branded 4G by the service providers. Its evolution LTE Advanced is a 4G technology. WiMAX is another technology verging on or marketed as 4G.

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Difference B/w 4G Ana 3G

How much faster is 4G compared to 3G and what applications run better on 4G?
3G and 4G are standards for mobile communication. Standards specify how the airwaves must be used for transmitting information (voice and data). 3G (or 3rd Generation) was launched in Japan in 2001. As recently as mid-2010, the networks for most wireless carriers in the U.S. were 3G. 3G networks were a significant improvement over 2G networks, offering higher speeds for data transfer. The improvement that 4G offers over 3G is often less pronounced. Analysts use the analogy of standard vs Hi-Def TV to describe the difference between 3G and 4G.

Comparison chart
3G
4G
Data Throughput Up to 3.1Mbps with an average speed range between 0.5 to 1.5 Mbps Practically speaking, 2 to 12 Mbps (Telstra in Australia claims up to 40 Mbps) but potential estimated at a range of 100 to 300 Mbps.
Peak Upload Rate 5 Mbps 500 Mbps
Peak Download Rate 100 Mbps 1 Gbps
Switching Technique packet switching packet switching, message switching
Network Architecture Wide Area Cell Based Integration of wireless LAN and Wide area.
Services And Applications CDMA 2000, UMTS, EDGE etc Wimax2 and LTE-Advance
Forward error correction (FEC) 3G uses Turbo codes for error correction. Concatenated codes are used for error corrections in 4G.
Frequency Band 1.8 – 2.5 GHz 2 – 8 GHz

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Technology blog

The Truth About the Bermuda Triangle
The Bermuda Triangle's bad reputation started with
Christopher Columbus. According to his log, on
October 8, 1492, Columbus looked down at his
compass and noticed that it was giving weird
readings. He didn't alert his crew at first, because
having a compass that didn't point to magnetic
north may have sent the already on edge crew into
a panic. This was probably a good decision
considering three days later when Columbus simply
spotted a strange light, the crew threatened to
return to Spain.
This and other reported compass issues in the
region gave rise to the myth that compasses will
all be off in the Triangle, which isn't correct, or at
least is an exaggeration of what is actually
happening as you'll see. Despite this, in 1970 the
U.S. Coast Guard, attempting to explain the
reasons for disappearances in the Triangle, stated:
First, the "Devil's Triangle" is one of the two places
on earth that a magnetic compass does point
towards true north. Normally it points toward
magnetic north. The difference between the two is
known as compass variation. The amount of
variation changes by as much as 20 degrees as
one circumnavigates the earth. If this compass
variation or error is not compensated for, a
navigator could find himself far off course and in
deep trouble.

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4G Technology

                           The 4G Technology is a.      

Wireless technology has transformed our lives in many ways. Until very recently, we needed a computer wired to a port, to get online. Even wired telephones are becoming a thing of past.  Nowadays, we use our mobile phones for banking, to check ticket availability at a Cinema

Hall, and many more. Wireless communication is the transfer of information over a distance without the use of enhanced electrical conductors or "wires”. And, Wireless networking refers to any kind of networking that does not involve cables. It helps in saving the cost of cables for networking in addition to providing the mobility. 



There are different types of wireless networks defined on the basis of their size, range and data transfer rate.The

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