Arrestors

A lightning arrestor is a mechanism that shunts or diverts the huge voltage and electrical current of a lightning hit to an earthed ground. Electrical equipment can be protected from lightning by an arrester, a device that contains one or more gas-filled spark gaps between the equipment's cables and earth. An arrester is designed to handle much higher jolts of electricity than a surge protector, which cannot handle a direct strike at all.
When lightning exceeds the arrestor's breakdown voltage, the currents arcs to the ground and prevents arcing around inside sensitive electronic equipment joined further down line. The glimmer gap may be filled with a noble gas, or with air. Other types may work by overcrowding normal irregular current, but allowing the direct current from a lightning discharge.
Lightning arrestors are normally installed on electric power broadcast lines, and on radio tower feed lines between the radio antenna and spreader. Smaller ones can also be installed on the mains electricity service coming into a building, just before the circuit breaker panel. Telephone wires also have fusible links sometimes where they enter a building, joined by carbon which will vaporize with very high current.

Blue Hen Chicken

A chicken is a type of domesticated bird which is often raised as a type of poultry. It is believed to be descended from the wild Asian Red Junglefowl.Chickens are the most common bird in the world. The population in 2003 was 24 billion, according to the Firefly Encyclopedia of Birds.
General biology and habitat
Male chickens are known as roosters (in the U.S., Canada and Australia), cockerels, or cocks. Female chickens are known as hens. Roosters can be differentiated from hens by their striking plumage, marked by long flowing tails and bright pointed feathers on their necks. Both the male and female have characteristic wattles and combs. These organs help to cool the bird by redirecting bloodflow to the skin. In males, the combs are often more prominent, though this is not the case in all varieties.
Chickens are omnivores and will feed on small seeds, herbs and leaves, grubs, insects and even small mammals like mice, if they can get them. Domestic chickens are characteristically fed commercially prepared feed that includes a protein source as well as grains. Chickens often scratch at the soil to get at adult insects and larva or seed. Incidents of cannibalism can occur when a curious bird pecks at a pre-existing wound or from over-crowding. This is exacerbated in close quarters. In commercial production this is controlled with chick "de-beaking" (removal of 2/3 of the top half and 1/3 of the lower half of the beak) and red, or very subdued lighting to make blood indistinguishable from the rest of the bird.

Drag racing

There are a range of sports involving racing motorcycles. FIM is the international sanctioning body for many such events.Drag racing is a form of auto racing in which cars or motorcycles effort to complete a fairly short, straight and level course in the shortest amount of time, starting from a dead stop. Drag racing originated in the United States and is still the most popular there. The most common distance is one quarter of a mile (1320 ft / 402 m), though one-eighth of a mile (201 m) tracks are also popular. The dragstrip extends well beyond the finish line to allow cars to slow down and return to the pit area.While typically thought of as an American and Canadian pastime, drag racing is also very popular in Australia, New Zealand, Japan, the Caribbean, England, Mexico, Greece, Malta, South Africa and most European and Scandinavian countries. At any given time there are over 325 drag strips operating world-wide.

Transistor radio

The transistor radio is a small radio receiver.
RCA demonstrated a prototype transistor radio in 1952. The first commercial transistor radio, the Regency TR-1, was announced on October 18, 1954 by the Regency Division of Industrial Development Engineering Associates of Indianapolis, Indiana and put on sale in November of 1954. It cost $49.95 (the equivalent of $361 in year-2005 dollars) and sold approximately 100,000 units.
The use of transistors in its place of vacuum tubes as the amplifier elements meant that the device was much smaller and necessary far less power to operate than a tubed radio. The characteristic portable radio of the fifties was about the size and weight of a small laptop computer, and contained several heavy batteries: one or more A batteries to heat the tube filaments and a large 45 to 90 volt B battery for plate voltage. By comparison, the "transistor" was about the size and weight of today's cassette-playing Walkman and operated off a single compact 9 V battery. The now-familiar 9 V battery was introduced particularly for powering transistor radios.

Stamp hinge

Stamp hinges are small, folded, rectangular pieces of paper coated with a mild gum, used to hold postage stamps onto the pages of a stamp album. The short end is moistened and affixed to the stamp, the long end is similarly affixed to the page. The hinge keeps the stamp on the page while still allowing it to be lifted to examine the back
Not all makes of hinge have this property, and the backs of many stamps have "hinge remnants", where the hinge has torn away rather than letting go of the stamp. This is particularly common for mint stamps, where the stamp's own gum adheres tightly to the hinge. Some old stamps may in fact have multiple hinge remnants layered on top of each other. equally, careless removal of a hinge may take away a layer of the stamp's paper, resulting in a type of stamp thin known as a "hinge thin". The best stamp hinges are also intended to be "peelable", meaning that the stamp may be removed from the page, and the hinge from the stamp, without any damage to either.

Traffic psychology

Traffic psychology is a young increasing field in psychology. Whereas traffic psychology is first and foremost related to "the study of the behaviour of road users and the psychological processes underlying that behaviour" as well as to the relation between behaviour and accidents, transportation psychology, sometimes referred to as mobility psychology, has its focus on mobility issues, individual and social factors in the movement of people and goods, and travel demand management (TDM).
There is no single theoretical framework in traffic psychology, but many specific models explaining, e.g., perceptual, attentional, cognitive, social, motivational and emotional determinants of mobility and traffic behaviour. One of the most famous behavioural models divides the various tasks concerned in traffic participation into three hierarchical levels, i.e. the strategic, the tactical and the operational level. The model demonstrates the diversity of decision and control tasks which have to be accomplished when driving a vehicle. However, until now, most of the psychological models have a rather heuristic nature, e.g. risk theories like the risk compensation hypothesis, Fuller's task capability model, and thus are not adequately precise to allow for concrete behavioural prediction and control. This is partly due to the importance of individual differences, a major topic of psychology which in traffic and transportation has not yet been adequately accounted for. On the other hand, social-psychological attitude-behaviour models, such as Ajzen's theory of planned behavior, have been helpful in identifying determinants of mobility decisions.