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While there are risks to wearing headphones for long periods of time, head indents are temporary. In fact, Headphonesty reports that it takes at least 135 kg to cause a minor fracture to the skull.
Headphones are a pair of small loudspeaker drivers worn on or around the head over a user's ears. They are electroacoustic transducers, which convert an electrical signal to a corresponding sound. Headphones let a single user listen to an audio source privately, in contrast to a loudspeaker, which emits sound into the open air for anyone nearby ...
This includes headwear that places pressure on the head — including tight hats, helmets, headbands, wigs and other artificial hair accessories, headphones and goggles. It is not known why some people are more sensitive than others to this type of pressure. External compression headaches can affect anyone who uses headwear.
The HPA also says that due to the mobile phone's adaptive power ability, a DECT cordless phone's radiation could actually exceed the radiation of a mobile phone. The HPA explains that while the DECT cordless phone's radiation has an average output power of 10 mW, it is actually in the form of 100 bursts per second of 250 mW, a strength comparable to some mobile phones.
Dental and Medical Problems is a bimonthly open-access [1] medical journal published by Wroclaw Medical University Press. [2] The editor-in-chief of the journal is Mieszko Więckiewicz. [2] The journal was established in 1960 as Wrocławski Biuletyn Stomatologiczny. In 1965, it was renamed Wrocławska Stomatologia, obtaining its current name in ...
Epoxy-Dent — A 1978 ad for "the strongest denture cream permitted by law". To prove its strength, a user bites down on a wood bar, which is lifted by a helicopter ("The Epoxy-Dent Chopper Test!"). [233] EPT Home Pregnancy Test — A parody of EPT's campaign that features real-life couples using the product to see if they're having a baby.
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Dental avulsion is a true dental emergency in which prompt management affects the prognosis of the tooth. [14] Replantation of the tooth within 15 minutes is associated with the best prognosis as periodontal ligament (PDL) cells are still viable.