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In generations past, most babies got all their scrub downs in the kitchen sink. These days, plastic or foam Baby Bathtub give parents a convenient spot to prop floppy newborns and keep more curious older babies contained.

While bathtime can be adorable, it can also be tricky—a good tub can make the process a lot easier for parents. The k…[Leggi tutto]

Bicycle, also called bike, two-wheeled steerable machine that is pedaled by the rider’s feet. On a standard bicycle the wheels are mounted in-line in a metal frame, with the front wheel held in a rotatable fork. The rider sits on a saddle and steers by leaning and turning handlebars that are attached to the fork. The feet turn pedals attached to…[Leggi tutto]

It’s been over a year since COVID-19 made its way to every corner of the world. At the moment, there are two main types of COVID-19 Rapid Test Kit commonly used to detect infections. Diagnostic tests are done to confirm if you currently have the virus and antibody (serology) tests help to identify people who have previously been infected with the…[Leggi tutto]

A pump is a device that moves fluids (liquids or gases), or sometimes slurries, by mechanical action, typically converted from electrical energy into hydraulic energy. Pumps can be classified into three major groups according to the method they use to move the fluid: direct lift, displacement, and gravity pumps.

Pumps operate by some mechanism…[Leggi tutto]

An oxygen concentrator is a medical device that concentrates oxygen from ambient air. Atmospheric air has about 78 per cent nitrogen and 21 per cent oxygen, with other gases making up the remaining 1 per cent. The oxygen concentrator takes in this air, filters it through a sieve, releases the nitrogen back into the air, and works on the remaining…[Leggi tutto]

Bulldozer, also called Dozer, powerful machine for pushing earth or rocks, used in road building, farming, construction, and wrecking; it consists of a heavy, broad steel blade or plate mounted on the front of a tractor. Sometimes it uses a four-wheel-drive tractor, but usually a track or crawler type, mounted on continuous metal treads, is…[Leggi tutto]

Pump, a device that expends energy in order to raise, transport, or compress fluids. The earliest pumps were devices for raising water, such as the Persian and Roman waterwheels and the more sophisticated Archimedes screw (q.v.).

The mining operations of the Middle Ages led to development of the suction (piston) pump, many types of which are…[Leggi tutto]

When to Wear a Leotard?

A leotard is a unisex skin-tight one-piece garment that covers the torso from the crotch to the shoulder. Leotards are entered by stepping into the legs and pulling the sleeves over the shoulders. Scoop-necked leotards have wide neck openings and are held in place by the elasticity of the garment. Others are crew necked or…[Leggi tutto]

Do you have a patio or garden in your house? Then a comfortable chair will be necessary. Rattan is a type of climbing or trailing vine-like palm native to the tropical jungles of Asia, Malaysia, and China. One of the largest sources has been the Philippines. Rattan can be identified by its tough, solid stems that vary from 1 to 2 inches in…[Leggi tutto]