This rule was applied in the language Occidental. After a possible modification one can apply this rule to create new forms of a word especially in Romance languages or in languages which borrowed vocabulary from Romance languages.
Young's double-slit experiment
The double-slit experiment in quantum mechanics is an experiment, which was first performed by physicist Thomas Young in 1801. It shows that light has both a wave nature or characteristic and a particle nature or characteristic, and that these natures are inseparable. So, light is said to have wave–particle duality rather than be only a wave or only a particle. The same is true for electrons and other quantum particles.
The base version of this experiment is very simple. It requires only a double slit device like the one in the picture, something to hold the double slit device still, and a good laser such as the kind that is used by workmen to "draw" straight lines when they are building. The laser is supported so it can only be moved on purpose. It is aimed at the central point between the two slits from a point about one half meter away. Something like a movie screen or a smooth white wall is put up on the other side of the double slit device several meters away. When everything is fixed, a pattern of light and dark bands will show up.
Lasers can produce one or more photons when given a certain amount of electricity. The photon or photons come out of a very small hole within a well known period of time. The speed of light is known, so the time the photons appear on the screen can be predicted. When photons are produced one at a time, what shows up on the screen are individual spots of light. If photons were waves then we would expect them to spread out as they travel and wash across a wide area of the screen, but that never happens. If photons were particles then we would expect them to appear at two points on the screen connected to the laser through the two slits in the middle. But that is not what happens either.
When Thomas Young did this experiment, he had no laser. He understood it by imagining light to be like waves of water. He thought that light waves moved out from the light source like waves spreading out from a pebble dropped into a pond, and that when the wave fronts hit the double slits, then the original wave gets through at the two slits and there are two different waves from then on. It was easy to figure out how two waves would interact to produce the bright bands and dark bands (often called "fringes") on the screen. He said he had proven the theory that light is waves.
But there were big problems. Light did not show up at the screen as waves that washed across it. Light came to be understood as swarms of photons that individually hit the detection screen. And, very surprisingly, a single photon could interfere with itself as though it were a single wave that fit the old wave description. It split into two waves at the double-slit device, and they then combined at the screen.
The double-slit experiment became a classic thought experiment for its clear explanation of the central puzzles of quantum mechanics.
The double-slit experiment has been of great interest to philosophers, because the quantum mechanical behavior it shows has forced them to rethink their ideas about classical concepts such as:
Experience in the micro world of sub-atomic particles forces us to re-conceptualise some of our most ordinary ideas.
ZoneAlarm
ZoneAlarm is a software firewall originally developed by Zone Labs, which was acquired in March 2004 by Check Point. It includes an inbound intrusion detection system, as well as the ability to control which programs can create outbound connections—the latter not available in the Windows XP Service Pack 2 firewall. , the newest release is ZoneAlarm Internet Security Suite 2009. ZoneAlarm was formerly known as Zone Labs, the usage of which is declining.
In ZoneAlarm, program access is controlled by way of "zones", into which all Computer networking connections are divided. The "trusted zone" generally includes the user's local area network and can share resources such as files and printers, while the "Internet zone" includes everything not in the trusted zone. The user can specify which "permissions" (trusted zone client, trusted zone server, Internet zone client, Internet zone server) to give to a program before it attempts to access the Internet (e.g. before running it for the first time) or, alternatively, ZoneAlarm will ask the user to give the program permission on its first access attempt.
"True Vector Internet Monitor", also known as "TrueVector Security Engine", is the core of ZoneAlarm. It is a Windows service which runs as "vsmon.exe" in the processes list. This Monitors internet traffic and generates alerts for disallowed access.
Operating System Firewall, OSFirewall for short, is a feature in ZoneAlarm paid versions only. This monitors programs and generates alerts when they perform suspicious behaviors.
SmartDefense Advisor is a service only available in premium versions of ZoneAlarm that helps the user with certain types of alerts. This utilizes a large database of trusted program signatures in order to provide the user with further advice upon requests from the program in regards to allowing or denying access to the Internet.
64-bit versions of the ZoneAlarm product line will be made available for Windows Vista in the first half of 2009.
Antivirus software
Antivirus software (or anti-virus software) aims to prevent access to computer systems by unwanted computer malware. Viruses, worms or trojan horses can be used by criminals or mischievous people (called 'hackers'). They can be used to steal information or damage system files. If no antivirus software is installed on a computer, hackers may be able to access the information in the computer.
There are many different types of antivirus software, and many antivirus programs can be downloaded for free. These free versions usually have some features missing, and the missing features are only available to those who buy the "full" version. Even still, many free antiviruses today have excellent virus scanning capabilities and can give people suitable internet security protections without the need to purchase additional protections.
Antivirus software protects computers in many different ways. For starters, most antiviruses offer more than just "virus" protection. They protect computers from all different kinds of malware, like spyware, rootkits, phishing, and ransomware. For this reason, antiviruses are frequently interchangeably referred to as "anti-malware" programs. There are a few different ways that antiviruses protect against malware, but the most common way is through a regular scan of all the data and files on a computer's hard disk. In an antivirus scan, the software will look through every file on a computer, and it will compare each computer file's genetic makeup with the genetic makeup of already-known viruses. If a file has the same genetic makeup as a known piece of malware, it will be flagged as a problem. This is known as signature-based detection, and it is only effective when a malware file has been previously identified and shared with the community of malware researchers who maintain the malware database. Another typical kind of malware detection is through behavior analysis. This is when the antivirus software identifies an abnormal behavior in a computer file or program, causing the antivirus to flag that issue and assess whether or not the abnormality has been caused by malware or by something else.