The tomato (Solanum lycopersicum) is a plant in the Solanaceae or nightshade family, as are its close cousin’s tobacco, chili peppers, potato, and eggplant. The tomato is subject to Central, South, and southern North America from Mexico to Peru. It is a perennial, often grown outdoors in temperate climates as an annual, typically attainment to 1–3 m (3 to 10 ft) in height, with a weak, woody stem that often vines over other plants.
The leaves are 10–25 cm long, pinnate, with 5–9 leaflets, each leaflet up to 8 cm long, with a jagged margin; both the stem and leaves are thickly glandular-hairy. The flowers are 1–2 cm across, yellow, with five sharp lobes on the corolla; they are borne in a cyme of 3–12 together. The word tomato derives from an expression in the Nahuatl language, tomatl. The exact name, lycopersicum, means "wolf-peach" compare the related species S. lycocarpum, whose scientific name means "wolf-fruit", common name "wolf-apple".
Sunday, August 26, 2007
Monday, August 20, 2007
Fertilization
Fertilization or fertilization also known as conception, fecundation and syngamy, is fusion of gametes to form a new organism of the same variety. In animals, the process involves a sperm fuse with an ovum, which finally leads to the development of an embryo. Depending on the animal species, the process can occur within the body of the female in interior fertilisation, or outside in the case of external fertilisation.
The entire process of development of new persons is called procreation, the act of species reproduction.
The entire process of development of new persons is called procreation, the act of species reproduction.
Monday, August 13, 2007
Donkey jacket
A Donkey jacket is a tiny buttoned coat, normally made of unlined black or dark blue woolen stuff; originally worn as a work jacket in the United Kingdom.
When used as a work jacket, it occasionally bears the name of the company which supplies the jacket, or the name of the company for which the wearer works. The jacket usually has two large hip pockets, and at times an inside poacher's pocket.
The donkey jacket is regarded as characteristic of the British manual worker.
When used as a work jacket, it occasionally bears the name of the company which supplies the jacket, or the name of the company for which the wearer works. The jacket usually has two large hip pockets, and at times an inside poacher's pocket.
The donkey jacket is regarded as characteristic of the British manual worker.
Tuesday, August 7, 2007
Infrared
Infrared (IR) emission is electromagnetic emission of a wavelength longer than that of noticeable light, but shorter than that of radio waves. The name means "below red", red being the color of detectable light of longest wavelength. Infrared radiation spans three instructions of magnitude and has wavelengths between about 750 nm and 1 mm.
These divisions are suitable by the different human response to this radiation: near infrared is the area closest in wavelength to the radiation detectable by the human eye, mid and far infrared are gradually further from the visible regime. Other definitions follow different physical mechanisms and the newest follow technical reasons .Unfortunately the international standards for these specifications are not currently obtainable.
The boundary between visible and infrared light is not precisely defined. The human eye is markedly less responsive to light above 700 nm wavelength, so longer frequencies make irrelevant contributions to scenes illuminated by common light sources. But particularly strong light (e.g., from lasers, or from bright daylight with the visible light removed by colored gels can be detected up to approximately 780 nm, and will be apparent as red light. The onset of infrared is defined at different values typically between 700 nm and 780 nm.
These divisions are suitable by the different human response to this radiation: near infrared is the area closest in wavelength to the radiation detectable by the human eye, mid and far infrared are gradually further from the visible regime. Other definitions follow different physical mechanisms and the newest follow technical reasons .Unfortunately the international standards for these specifications are not currently obtainable.
The boundary between visible and infrared light is not precisely defined. The human eye is markedly less responsive to light above 700 nm wavelength, so longer frequencies make irrelevant contributions to scenes illuminated by common light sources. But particularly strong light (e.g., from lasers, or from bright daylight with the visible light removed by colored gels can be detected up to approximately 780 nm, and will be apparent as red light. The onset of infrared is defined at different values typically between 700 nm and 780 nm.
Monday, July 30, 2007
Software
Software basically is the distinct image or representation of physical or material position that constitute configuration to or functional identity of a machine, usually a computer. As a substance of memory, software in principle can be changed without the alteration to the static paradigm of the hardware thus without the remanufacturing thereof. Generally software is of an algorithmic form which translates into being to a progression of machine instructions. Some software, however, is relational forms which translate into being the map of a recognition network.
Software is a program that enables a computer to achieve a specific task, as contrasting to the physical components of the system. This include application software such as a word processor, which enables a user to achieve a task, and system software such as an operating system, which enables other software to run suitably, by interfacing with hardware and with other software.
Software is a program that enables a computer to achieve a specific task, as contrasting to the physical components of the system. This include application software such as a word processor, which enables a user to achieve a task, and system software such as an operating system, which enables other software to run suitably, by interfacing with hardware and with other software.
Monday, July 23, 2007
Hunt
A hunt is a doings during which humans or animals chase some prey, such as wild or specially bred animals traditionally targeted species are known as game, in order to catch or kill them, either for food, sale or hobby, See hunting.
Wiktionary, the free dictionary, the word also applies collectively to a group of hunters practicing such a hunt, particularly with dogs. See fox hunting.
It may also, at least because circa 1200, take the form of a search for a specified target that can, unlike a hunting prey, remain unheard, as in specific compounds such as scavenger hunt or treasure hunt. Synonyms of hunt(ing) may have a similar resulting meaning, e.g. photo safari.
Wiktionary, the free dictionary, the word also applies collectively to a group of hunters practicing such a hunt, particularly with dogs. See fox hunting.
It may also, at least because circa 1200, take the form of a search for a specified target that can, unlike a hunting prey, remain unheard, as in specific compounds such as scavenger hunt or treasure hunt. Synonyms of hunt(ing) may have a similar resulting meaning, e.g. photo safari.
Monday, July 16, 2007
Camera
A camera is a device used to take pictures, either alone or in series, with or without sound, such as with video cameras. The name is resulting from camera obscura, Latin for dark chamber, an early mechanism for projecting images in which an whole room functioned much as the internal workings of a modern photographic camera, except there was no way at this time to record the image little of physically tracing it. Cameras may work with the chart spectrum or other portions of the electromagnetic spectrum.
Every camera consists of a number of enclosed chambers, with an opening or aperture at one end for light to go into, a recording or viewing surface for capturing the light at the other conclusion. This diameter of the aperture is often forbidden by a diaphragm mechanism, but some cameras have a fixed-size opening.
Video and digital cameras use electronics, frequently a charge coupled device or sometimes a CMOS sensor to detain images which can be transfer or stored in tape or computer memory within the camera for later playback or processing. Traditional cameras capture glow onto photographic film or photographic plate.
Every camera consists of a number of enclosed chambers, with an opening or aperture at one end for light to go into, a recording or viewing surface for capturing the light at the other conclusion. This diameter of the aperture is often forbidden by a diaphragm mechanism, but some cameras have a fixed-size opening.
Video and digital cameras use electronics, frequently a charge coupled device or sometimes a CMOS sensor to detain images which can be transfer or stored in tape or computer memory within the camera for later playback or processing. Traditional cameras capture glow onto photographic film or photographic plate.
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