Showing posts with label Technical. Show all posts
Showing posts with label Technical. Show all posts

Tuesday, 3 July 2012

LED Lights Future....



That small dot of light that one sees all around holds business potential that is only starting to ripen
For the longest time, incandescent bulbs, which replaced lanterns, reigned as the solution for lighting the world over. Compact fluorescent lamps (CFLs) that consume less power to get as much lighting are slowly and steadily gaining acceptance in the market.
As a result incandescent bulbs will soon be shelved for good. However, even as CFLs are gaining momentum, they already have an emerging threat in the form of an even lesser power consuming and higher-efficiency technology—light-emitting diodes (LEDs)
http://electronics.howstuffworks.com/led.htm
Enlightening factsLEDs consume less power and have higher energy efficiency than CFLs or incandescent light sources and have an extremely long lifetime, which means the product produces more or less no ‘waste’ in the form of spent light bulbs. LEDs do not contain any mercury. They can actually cut down that electricity bill manifold, even in comparison to compact fluorescent lamps (CFL).
The best thing about LEDs is that even though they are really small in size, the light emitted is really bright. This fact itself opens up a vast canvas for innovation in making products. The trick is to house LEDs in a variety of fixtures.
Further variations of LEDs include organic light-emitting diodes (OLED), polymer light-emitting diodes (PLED), light-emitting polymers (LEP), flexible OLED (FOLED), and phosphorescent OLED (PHOLED). These variants have been put to innovative use in apparel displays, etc.
According to a report by the International Energy Agency, the adoption of more energy-efficient lighting systems could prevent a cumulative total of 16 billion tons of carbon from being added to the world’s atmosphere over the next 25 years. Despite advances in lighting technology, between 67% and 75% of the world’s lights utilize older, less energy-efficient technology.

Thursday, 14 July 2011

Phising Scam

WHAT IS PHISHING?

A phishing scam is when someone fraudulently and illegally imitates a trustworthy source to steal usernames, passwords, credit cards info, etc.

It can not only occur through e-mail, but also through wall posts, facebook messages, and Facebook chat.
...

HOW TO RECOVER

If you think you have had your account compromised, immediately change your Facebook password at
https://www.facebook.com/editaccount.php

Also, report the scam to Facebook by sending an e-mail to privacy@facebook.com


HOW TO AVOID BEING SCAMMED

Before entering any sensitive information like usernames or passwords, make sure you are on facebook.com and not a similar, but different domain.

Read the Facebook blog for suggestions and what they're doing to help:
http://blog.new.facebook.com/blog.php?post=25844207130


HOW TO RECOGNIZE A PHISHING WEBSITE

It is easy to make a domain name (thus a URL, or web address) look legitimate when it is fraudulent. The only part of a domain name that is unique to the owner is the part immediately before the .com or .org, etc. So anything that ends with facebook.com (like ilstu.facebook.com, or photos-d.ak.facebook.com) with no single forward slash (/) to the left of it, is legitimately Facebook. A website can include the term "facebook" before the domain in something called a subdomain. For instance, an address like this looks moderately legitimate: facebook.com.profile.php.id.335781.com. But a closer look reveals that the domain is actually 335781.com. The rest of the terms are subdomains. So always check the domain before you share personal info. For more on the anatomy of URLs (web addresses) take a look at the images in this group's photo gallery below.


FREQUENTLY ASKED QUESTIONS

1) Why would someone want to steal Facebook e-mails and passwords? If a phisher steals your profile, they have access to the trust of all of your friends, which can lead to manipulation (called "social engineering" - see the "London scam" below). Phishers may also attempt to use your password on other online accounts associated with your e-mail address.

2) Why is it so urgent that word gets out about this? Imagine this scenario: The scam starts with one person who has 300 friends, so it gets sent to 300 people. Even if only 1% of people fall for it, 3 more account logins have been collected and compromised. The next day, wall posts are sent out from 3 accounts to a total of 900 people. 9 more people fall for it, and the total of compromised accounts is 13. If this trend continues daily, by the end of the week, over 300,000 people have come into contact with the scam, and the phishers have unauthorized access to over 3,000 Facebook accounts. By 14 days, over 2 million Facebook profiles have been compromised. This can spread like wildfire if people are unaware of the scam.