Professional rammed earth builders use machines that are hooked up to air compressors. The air pressure does the work of tamping down the earth. When you first start ramming dirt, it makes a dull sound, but when it's adequately tamped, it will change to a ringing sound. Once the earth i...
Not only does a push for a chickenpox vaccine protect a child and his or her classmates, it can also protect grandparents who may not have had chickenpox. Protecting the elderly is also the idea behind another vaccination that many of us line up for each winter: the flu shot. Between 12,...
Squatters in London made a statement about the gap between rich and poor when they took over a house for 10 days in the summer of 2001. The $3 million (1.5 million pound) house belonged to wealthy British economist Gavyn Davies. During the mass eviction on the 10th day, one squatter sa...
An essential part of the recovery process is physical therapy. Not only does therapy improve the healing and function of the residual limb, but it also helps to strengthen bones and muscles elsewhere in the body, which can help compensate for the missing limb. For example, a physical therapist...
Squats work various muscles in your body – your legs, glutes, calves, abs, lower back, and even your arms from holding the bar. Squats can replace several leg exercises, making them more time-efficient for building muscle mass. Building and maintaining strong, muscular legs is important to ...
How Does Life Insurance Work? Life insurance works by providing a death benefit in exchange for paying premiums. One popular type of life insurance—term life insurance—only lasts for a set amount of time, such as 10 or 20 years. Permanent life insurance also features a death benefit but ...
Save this picture!Nature & Environment Learning Centre / Bureau SLA. Image Courtesy of Bureau SLA A common variation is the ventilated Trombe wall, which supplements the natural conduction of the thermal mass with vent-facilitated convection. Vents are placed at the top and bottom of the space ...
How does a platter store data? When you save data on your computer, it's magnetically recorded onto the platter's surface. The platter spins at high speeds while read/write heads on an actuator arm move across it to access and modify the data. ...
Some scientists even speculate that a large-scale venting of methane into the atmosphere (such as from the release of huge chunks of methane ice locked under the oceans) could have created brief periods of intense global warming that led to some of the mass extinctions in the planet's ...
who implemented reforms to hand over certain government enterprises to the private sector. After the Soviet Union collapsed, there was mass privatization of previous government enterprises to a select portion of the populace in Russia, known asoligarchs, that dramatically increased inequality within the...