How Can They Hear You Scream?

Sound waves (Photo credit: Wikipedia)

Sound needs a medium, something that's solid, liquid or gas that can carry it through space. In a vacuum, sound can't travel at all. That's why no one can hear you scream in outer space. When sound travels through the air, they're called sound waves or audio signals. Certain devices catch the frequencies of these sounds and turn them into something discernible for human ears. This is where the lachapell audio signal processors at guitar center come in. They not only receive the signals, but also create them and broadcast them, especially when they come from a musical instrument.

Have you ever wondered why studios have special walls that are sound-proofed? These walls prevent sounds from outside the room from entering and ruining the recording process. The walls also reduce the chance of sound from reflecting back and developing an echo in the recording. On the contrary, opera houses and sound stages where musicals are performed and movies are filmed have special walls and ceilings that specially reflect sounds to the best possible quality.

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Skin Care Benefits of Using Sulfur Soap

A sample of sulfur (Photo credit: Wikipedia ) Despite its acrid smell, a bar of sulfur soap brings many health benefits to your skin through its antiseptic, anti-fungal and antibacterial qualities. In olden times, individuals had to take a dip in sulfur-rich hot springs located at a distance from an active volcano. Spas often appeared around these areas to provide patrons privacy and comfort while they visited the pools of heated water and sulfur. Many people frequented these places because the hot water therapy soothed their aching muscles and the sulfur healed their skin problems, such as acne vulgaris, whiteheads, blackheads, eczema, rosacea, scabies, and seborrheic dermatitis. Now, sulfur's cleansing properties are packaged neatly in soap bars. The ten percent sulfur content in the soap has enough potency to effectively produce the same effective results as dipping your whole body in a pool of sulfur-rich hot water. Like in the ancient times, use sulfur soaps to reme...

How Do You Treat Scalp Acne and Scalp Dermatitis?

A case of Seborrhoeic Dermatitis on the back of the head (Photo credit: Wikipedia ) If you suffer from pimples on the scalp, then it's important to find a good scalp acne treatment. They're ugly, painful, and irritating. We can't see them ourselves so we pick them often by scratching our scalp before knowing they're there. Scalp wounds tend to bleed and this can make the spots visible, especially if your hair is thinning, fine or very short. Most acne on the scalp has the same cause as acne on the face, that is, overproduction of sebum leading to blockages of hair follicles, which often become infected. Inflammation can be caused by a condition called seborrheic dermatitis , and this, together with oily skin, is what you have to go along with scalp acne. What happens is the scalp will be red and itchy and the skin will flake off as dandruff. Associated with the condition of seborrheic dermatitis and more serious cases is yeast and it's someti...

A brief vacation

I have just got back from UP Diliman for a week of respite. I had training for trainers at UP SoLaIR (School of Labor and Industrial Relations). It was a working vacation. At least I had time to slow down and not think of work for a few days. It was good! Really felt good to be taken cared of by the University Hotel staff.