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Why do people cry or get emotional while watching sad scenes in movies or serials?

The phenomena of reacting to emotional scenes can be analysed by explaining mirror neurons. These are activated both when an animal performs an action and when the animal observes the same action being performed by another animal (especially belonging to the same species). The results of brain imaging experiments show that the human inferior frontal cortex and superior parietal lobule are active when a person performs an action and when the person sees another individual performing an action. It explains much about how we learn to smile, walk, talk, or play tennis. At a deeper level, it suggests a common neurobiological dynamic for our understanding of others and the complex exchange of ideas we call culture. Mirror neurons let you walk in other person’s shoes by creating an impression of you experiencing the same thing as the doer – be it reacting to sad scenes in movie or jumping with joy at an Indian cricket victory.
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Tangible 3D system

Created by a Japanese firm, the tangible 3D system allows users to not only see but also feel a three dimensional image with the help of a sensor-loaded glove. Possible commercial uses of this technology could include linking it to video phones, which will allow users to not only see but also even touch their loved ones, even if they are far away.
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Ozoniser

An Ozonizer is a purifier that creates ozone, a form of oxygen, to kill and/or filter out contaminants, such as bacteria, fungi and many viruses. Ozonizer creates ozone by charging the air with a burst of high negative voltage to produces ionized forms of molecules other than ozone. It acts like air and water cleanser which uses naturally occurring trace gases to exterminate microorganisms and filter a wide range of pollutants. Ozone is present in nature, mostly above the sea levels. It helps repel ultraviolet emission. Ozone is highly toxic to humans and other living things hence if below the atmosphere it can be risky.
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Coarse Salt

Coarse salt is larger coarsely grained sea salt. You often see cooks on television using coarse salt that they sprinkle with their hands out of an open container. Coarse Salt is a variety of salt that is larger than common "table" salt. Coarse Salt is thicker than fine salt. Some examples of course salt are Kosher Salt and Sea Salt. It is also the type of salt that is used on meats and soft pretzels. It is made by evaporating sea water. The coarser sea salt's mineral content has less iodine than table salt, which is why some sea salts are now iodized.
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Flash Converter

Flash to Video Converter is a software program converting video formats with high quality. Flash to Video Converter is in one tool, convert all popular video, audio formats,to movies. For best results, look for a package that converts from multiple platforms into Flash. Two popular packages are Wondershare Video to Flash Encoder & iOrgSoft Video to Flash Converter. Adobe Premiere is very good, but Quicktime has free software for flash conversions. The best flash convrter is DVD Flash Video Converter. It's free and very powerful. It has easy-to-use interface and fast converting speed.
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Mercury Vapor Lamp

Mercury Vapor Lamp is from fluorescence emission. The mechanism in mercury vapor lamp is more involved and sequential. The sputtered electrons from the filaments, after having been accelerated by high voltage, hit the mercury atoms. Here also, the excited electrons of mercury atoms relax by emitting characteristic but ultraviolet (254nm, invisible) light. The photons of this ultraviolet light fall on the fluorescent layer on the inner walls of the tube and excite the molecular bonds of the fluorescent material to various electronic and vibrational energy states. Hence, the light from the mercury vapor lamp is white. It works through the combined effect of electric discharge through mercury vapors and fluorescence from phosphors (luminescent materials).

On the other hand, a mercury vapor lamp is quite suitable for lighting applications. This is because; the mercury vapor lamp can feed almost the entire visible region (380-780 nm) of the human visual system. Conventional fluorescent lamps can also be called as low-pressure mercury discharge lamps. In this system, when electric discharge strikes mercury vapors held at low pressure ( a few mm of mercury) it produces a lot of ultraviolet radiation dominantly at 254 nm inside the column of the discharge tube. This UV radiation when impinging on the white coating made of fluorescent materials coated inside the discharge column of the tube will generate white light (called daylight). Light output from a fluorescent lamp is moderate (60 lumens/watt) while the color-rendering index is high


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Sodium Vapor Lamp

The light in Sodium Vapor lamp is from an atomic emission process. The mechanism of light emission in a sodium vapor lamp is simple and straight-forward. The filaments of the lamp sputter fast moving electrons, which hit the sodium atoms (vapor) causing the valence electrons of the sodium atoms to excite to higher energy levels and the electrons thus excited relax by emitting the characteristic monochromatic bright yellow light (589nm). It works by electric discharge. Although sodium vapor lamps produce much higher light output (about 90 lumens/watt) they cannot be used in lighting applications where color-rendering property is very crucial. This is because most of the light emitted from a sodium vapor lamp is concentrated in the yellow part of the visible spectrum (around 580-590 nm).
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Tapping Trees for Electricity

Trees might be the source of the ultimate green power and researchers have figured out a way to plug into the power generated by trees. Scientists have found out that plants can produce electricity. It can pack up to 200 millivolts of electrical power. A millivolt is one-thousandth of a volt. A big Maple trees generated steady voltage of up to a few hundred millivolts. Powering a circuit, however, required a much higher voltage. To extraxt power from trees and convert it into useful energy, experts built a boost converter capable of picking up as little as a 20 millivolt output and storing it to produce a greater output. By hooking up to a tree using electrodes, the custom-built device was able to generate an output voltage of 1.1 volts, enough to run low power sensors.
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Bottled Water - Expiry Date

All companies that produce consumables must, by federal law, have an expiration date on it. Since bottled water is a consumable, the company must put a expiration date on it.
Also some water becomes impure due to plastic melting or substances released into the water by the plastic. There is a chance that over time (years), the container could cause the water to have a different taste. Water with a shelf life must be replaced whether it is consumed or not, which increases sales. Bottled water is, for the most part, an ecological disaster. The plastic is not fully recycled. It is just giving warning that it will taste different from what it did when bottled. They’re expiration on water bottles because most of the time companies will put fluoride in water and the fluoride expires so they need an expiration date. Water kept in a plastic container is harmful because bottles are made up of toxic substances which are harmful for both animal and plant life. In nature, as per its property water flows which keeps it clean and pure, not allowing any source of crude deposition. However, water if kept enclosed for a prolong period allows anaerobic algae and other microbes to grow in it; making it unsafe and unfit for potable use. Hence, pouched water possesses an expiration date on it. The plastic chemicals will get to it. The water can go stale, too.
There are two main types of sterilization that all food and drink manufacturers use. The first is the use of peracetic acid that gives an instant kill to most pathogens (bugs that make you ill). The second is the use of steam. Holding a steam temperature of above 120 degrees in the product line for 15 minutes will kill virtually all pathogens. However, some bacteria form spores which are virtually indestructible and can last for millions of years. The only way to make totally sterile drinks would be to irradiate them, which wouldn't make them radioactive, but would make them cost a great deal of money to produce. Thus, the manufacturer cannot guarantee that their product is free of pathogens and gives it a 'use by' to minimize their liability. Packaging deterioration is the other reason for the "Best By" Date


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Cookies

Cookies are small files that web sites create to hold useful information for when you revisit the site. So if you register with a site using a name and password it may hold the name and password in a cookie so you don’t have to log on each time you visit the site. Most people set their browser to ALLOW cookies to be created, this is normal. However you can set your browser to NOT allow cookies to be created, or to be asked each time a web site wants to create a cookie. You need to make sure the setting on your web browser WILL allow cookies to be created. Once you have done this you can leave it like this and don’t need to change it back.

If you are using Internet Explorer as your browser then select the Help menu then the option Internet Explorer Help


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