TechWorld

High-speed cameras taking 100,000 pictures in one second are enough to fascinate us. But what about a camera that can film at a rate of 5 trillion images per second. It’s created by the researchers Elias Kristensson and Andreas Ehn at the Lund University in Sweden. The camera can make light slow enough that it could be analyzed by humans. In other words, it can be used to record events happening in the 0.2 trillionths of a second. In 2011, a similar camera device was created by the MIT Media Lab. But it was slower and capable of capturing 1 trillion images per second. The researchers demonstrated the camera by filming photons of light traveling a distance equivalent to the thickness of a paper. The trillion camera works in a different way in comparison to the normal high-speed cameras. [youtube https://www.youtube.com/watch?v=2fjP02EpJac?feature=oembed&w=669&h=502] In the method, laser light pulses with a unique code are slashed on the subject. The reflected pulses captured by ...

More than one hundred years ago, Henri Becquerel discovered that uranium emitted penetrating rays similar to those used by Wilhelm Röntgen to take the first X-ray image (of his wife’s hand), starting a new era of far-reaching applications. There are of course many dangers that come with the use of radioactivity, but there are also many beneficial uses for our society.   WHAT IS RADIOACTIVITY An alpha particle is expelled from the nucleus. The nucleus of an atom is made of protons and neutrons. Because protons have positive charge, they repel each other, so there must be a force that holds the nucleus together, and the neutrons don’t help, because they are neutral. This force is the strong nuclear force and the energy associated with it is called the binding energy. For reasons that go beyond the scope of this article, atomic nuclei with more than 83 protons in it (bismuth) do not have enough binding energy to hold the nucleus together. In response, the nucleus tries to achieve bala...

The fraudsters are stealing a large sum of money from the victim’s bank accounts by taking the control of their mobile phones and then intercepting the texts messages sent by the banks. The fraudsters are again gathering as much info as possible on the victims and using a method we warned the public in the past named SIM splitting, to gain the access to bank accounts of people. This is the Money investigation found which one victim from the London lost £22,300 when these fraudsters raided their Santander accounts using the method. Two more victims had drained   £19,500  from their accounts after the criminals intercepted their bank’s text messages. How does this fraud work? Step 1: Initially the fraudsters have harvested as much as they can about the targetted individual. This includes intercepting their post, searching public information on the search engines/social media, tricking them into the installing of malware or buying the information from the Organised Crime Groups. Step 2: ...

Kali Linux is the favorite operating system of ethical hackers. Last year, the developers of this ethical hacking toolset decided to switch to the rolling release model. This means that instead of being based on the standard Debian releases, Kali Linux rolling distro ensures that it’s regularly being updated with latest features and patches. But, in the rolling model, the release of updated images isn’t much important. But, the latest release, i.e., Kali Rolling 2017.1, brings in a bunch of exciting features and updates. So, let’s take a look at the major highlights: Kali Linux 2017.1 new features RTL8812AU Wireless Card Injection support This release brings wireless injection support to 802.11ac standard. This has happened due to the implementation of drivers for RTL8812AU chipsets. For installing the driver, you simply need to run the following command: 1 2 apt – get update apt install realtek – rtl88xxau – dkms CUDA GPU Cracking support Thanks to the improvements in packaging, the u...

In the year 1976, F.A Hayek, in his book “The Denationalisation of Money,”  propagated the establishment of competitively issued private money. In the mid-70s, what seemed like a farfetched idea was conceived by yet another Economist  in the year 1999. Milton Friedman, an American economist who received the 1976 Nobel Memorial Prize in Economic Sciences, predicted of time where the internet, (still in a nascent stage then) would help abolish the role of a government and evolve a currency free from the shackles of the government control. Less than ten years later the prophecy came true when Satoshi Nakamoto, a Japanese, invented a form of cryptocurrency called “Bitcoin.” The origin of Bitcoins can be traced to the aftermath of the global recession and money crisis of 2008 that shook the whole world economy. What is bitcoin?  How does it work? In the simplest form, Bitcoins can be described as a “Peer to Peer Electronic cash system.” Bitcoins can be used as a method of payment for numero...

Hackers are an interesting subculture and, as such, they get a fair bit of attention from the media. The idea of a teenager breaking into high security databases is fascinating and more than a little terrifying. However, hackers aren’t all teenagers, nor are they all focused on breaking into places they shouldn’t be. In this article, we’ll look at some reasons why the general public can actually be thankful for hackers. The White Hat Hackers The first reason people should be thankful for hackers is that not all hackers are fixated on breaking into your computer and stealing your data. In fact, hackers see themselves as a group with several subgroups. The black hat hackers are the ones who break into systems for material gain. Gray hat hackers, on the other hand, are in it for personal recognition mostly, but they still break important rules. It’s the white hat hackers that really do good work, however, by hacking into sites in order to help those sites test and improve their security...

According to the data and reviews submitted on career website Glassdoor, tech companies like Dropbox, Facebook, and Pinterest offer the highest paying internships. The former interns praise these companies for their friendly environment and great quality of work. These companies are also known for their popular and purposeful work. A re you highly qualified and looking for a great tech internship that pays a lot? Well, you’re at the right place. Here, I’m going to tell you about the tech companies that offer highest paying internship programs. This list was originally compiled by Business Insider using the data obtained from Glassdoor . 10 Tech Companies With Highest-paying Internships Note : Please note that these salaries are for U.S.-based internships. The internship offers might vary in other countries. 1. Dropbox – $8,500/month   According to a former Dropbox intern, Dropbox works hard to keep its internship program transparent. The interns get bi-weekly feedback from their ...

[embeddoc url="http://techworldblog.in/doc/hacking_history.pptx" download="all" viewer="microsoft"] Histroy of Hacking After reading this article you guys are going to get the answer of Hackers - innovative or immoral ??? Hackers have always fascinated the public. Films books, and video games have all attempted to explore the hacker psyche - but just who are these mysterious figures ?? Take a look at this timeline of hacking history, from the phone phreaking to corporate theft. 1960s : Hacking begins in the 60s at MIT.

All of us have seen function keys before. They are pretty much the standard keys you would find on any laptop or computer (Except if you are one of those Macbook 2016 users). If you are a programmer, you would have already used some of them, but for normal people, their purpose is still unknown. In various programming environments, these keys are used to compile or run a program. There are a lot of uses to the function keys that you should know. F1 through F12 may have a variety of different uses or no use at all. The operating system installed on the computer and the software program that is currently open dictates how each of these keys operate. A program is capable of not only using each of the function keys, but also combining the function keys with the Alt or Ctrl key. For example, Microsoft Windows users can press Alt + F4 to close the currently active program. Note: Some keyboards' F1-F12 keys include additional functionality when used in combination with the Fn key, which ...