physics videos

America’s farms and ranches feed the world. The wood from our forests is also in great demand. Agricultural Inspectors help to make sure that everything grown for commercial purposes meets government standards for quality and safety. Inspectors are involved in all aspects of the production process…often examining samples along the way. They also inspect the equipment used in the production; checking to see that it’s clean and in proper working condition view more

This is a job that often requires speed, but always combined with the utmost care. Ambulette drivers and attendants drive vehicles and assist in transporting sick or injured people. Many of these jobs do not come with flashing lights and sirens, however. Often people who are getting over procedures, or need help getting to and from medical care, are also taken care of by ambulette drivers and attendants view more

Space may be the final frontier, but it’s been studied since the dawn of civilization. And while early man could only stargaze with unaided eyes, astronomers today use extremely sophisticated equipment to examine the universe. From giant telescopes here on the earth…to unmanned probes traveling millions of miles into deep space…information is collected and interpreted. Often with the use of computers view more

A job as vehicle washer is not hard to get, so long as you meet some physical requirements. You have to be strong. You have to be willing to work hard for long hours—and low pay. You have to be able to lift and carry heavy objects, to stoop, kneel, crouch, or crawl in awkward positions. You might need to wear safety clothing to protect yourself from chemicals. But what you’ll get at the end of the line, in addition to a clean vehicle, or piece of equipment, is experience and a record of on the job performance view more

Communication equipment mechanics install and maintain the switches that connect someone with someone else whenever they dial the phone. Many work in “central offices” — those windowless phone company buildings seen in many towns. Mechanics specializing in installation and repair setup and connect computer phone switches. They punch copper wire into connector boards or splice fiber optic cable to make the physical connections and then program the switches to establish the electronic connections view more

Just as city police officers protect people…fish and game wardens protect wildlife. In some states, they’re called Conservation Officers. They enforce laws and regulations designed to conserve fish and animal populations. They patrol their assigned areas by car, boat, airplane, horse or on foot. As officers of the law, Fish and Game Wardens, or Conservation Officers, carry weapons and are trained by the local, state or federal agency that employs them view more

When a crisis occurs, whether an act of war or terrorism, a technological emergency such as a nuclear power plant accident or hazardous waste spill, or a natural disaster, someone has to coordinate the response. Emergency Management Specialists work for law enforcement agencies, the military, local, state or the federal government and for private industry, to imagine the worst—and plan for it. When times are good, these specialists prepare emergency plans, provide training, develop warning systems, and run drills view more

“The cause of the blaze is under investigation.” By the time you hear that phrase in a news story about a fire, a special kind of detective has already been hard at work trying to crack the case. Where we see burnt rubble, a fire investigator sees clues. Often before the smoke clears, this investigator is at the scene collecting and documenting evidence to determine the cause of the fire. This can involve carefully sifting through debris with specialized equipment and running lab tests on it view more

Does your house stay cool in the summer and warm in the winter? If so, thank the workers who installed the insulation – they did their job properly. An insulation worker installs insulating material by cementing, stapling, wiring, taping or spraying it into buildings, around pipes, boilers and tanks. The insulation can take the form of foam, loose-fill, fiberglass, cellulose, or rock wool and in cases where there is old insulation, workers must first remove it and then secure the new materials view more

Medical appliance technicians combine a knowledge of human anatomy with math and power tools to create artificial limbs and braces. They work as assistants to orthotists and prosthetists, medical experts who use specially-designed devices to help patients overcome a physical disability. The technicians read prescriptions and detailed information about what the patient needs. They often work from a cast or impression of the limb as a pattern, taking careful measurements with precision instruments view more

Drug and alcohol abuse can ruin lives. Not only are these addictions difficult to overcome, they’re often associated with mental illness. The professionals that people turn to for help are Mental Health and Substance Abuse Social Workers. Care usually begins with counseling. Therapy can be on an individual basis or in groups. Social workers confer with other professionals to evaluate the mental or physical condition of a client view more

Museums would be dreary places if not for the ingenious work of museum technicians and conservators. Whether preparing a painting for display…or creating a housing to store priceless objects…museum professionals use their skill and knowledge to engage audiences of all ages. Conservators typically train in graduate level programs specifically designed for museum work. Technicians may receive on the job training while working on their undergraduate degrees view more

People who are physically, mentally or emotionally disabled often have difficulty dealing with basic living skills. Helping them to cope are Occupational Therapy Assistants and Aides. Under the supervision of occupational therapists, assistants and aides work very closely with their clients to help them compensate for limitations and help restore vocational, homemaking and daily living skills. view more

Electro-mechanical devices are the weak link in a computerized world. That’s because, unlike computers, they are based on moving parts. Cash registers, printers, photocopiers, and fax machines have to transport paper past a printing or scanning element. Typewriters, which many offices use to fill out multi-part forms, have printing heads that physically strike carbon ribbons and paper. And where there is movement, there is wear, and, eventually, the need for repair view more

If you enjoy helping the others, you may want to consider working as a Physical Therapist Aide. You don’t need formal training or a license to be hired. Physical Therapist Aides assist patients receiving treatment by physical therapists. They help disabled patients move to treatment areas; they keep the areas organized and clean, and prepare them for each patient’s therapy. Some Aides also do clerical work, such as ordering supplies and filling out medical insurance forms view more

A recreational therapist is rewarded with small successes that make big differences in a patient’s life: The smile of a stroke victim, who finds she can move her stiff, cramped hand… The pride of a patient in a psychiatric ward, who creates a work of art. With America’s aging population there is a new focus on long term care As a result more physical and psychiatric rehabilitation will be needed in the years ahead view more

There’s a lot more to traffic than “stop” and “go.” To keep motorists moving, Traffic Technicians perform many complex tasks. They might set the length of time a light stays “red…” Count the number of trucks using a particular bridge… Make sure a road crew is protected and well marked… Or analyze accident reports to determine if a highway interchange is too dangerous… Those are just a few examples, of the work that goes into enhancing safety and the smooth flow of traffic view more