Article. Stuffing your phone into your pants pocket is a convenient go-to, but for men it could have dire consequences, according to research. A new study warns that men in particular need to think twice about where they are keeping their mobile device. A review of 21 research papers on radiation shows mobile phones kept close to a man's genitals for an extended period of time decreases sperm count. The studies also suggest surviving sperm could be DNA-damaged. The findings have baffled scientists who have no way to explain how non-ionizing radiation influences the body.
Without that common connection many public health investigators are not confident to say definitively that cellphones harm sperm. But a new study, by a team at Australia's University of Newcastle, has collected years of evidence in a bid to identify the trend and find potential causes. Statistics show that 14 per cent of the world has difficulty trying to conceive - with male infertility a factor in 40 per cent of cases. 1284. Radio spectrum - Wikipedia. The radio spectrum is the part of the electromagnetic spectrum from 3 Hz to 3000 GHz (3 THz).
Electromagnetic waves in this frequency range, called radio waves, are extremely widely used in modern technology, particularly in telecommunication. To prevent interference between different users, the generation and transmission of radio waves is strictly regulated by national laws, coordinated by an international body, the International Telecommunication Union (ITU).[1] Different parts of the radio spectrum are appointed by the ITU for different radio transmission technologies and applications; some 40 radiocommunication services are defined in the ITU's Radio Regulations (RR).[2] In some cases, parts of the radio spectrum are sold or licensed to operators of private radio transmission services (for example, cellular telephone operators or broadcast television stations). By frequency[edit] ITU[edit] The ITU radio bands are designations defined in the ITU Radio Regulations. IEEE[edit] Electromagnetic Field Shielding Fabrics.
Accessories which can be used with Shielding Fabrics: "Get Samples of All Our Fabrics" Can't decide which fabric is right for your application? Want to see and feel the fabrics before you decide? In this booklet you get swatches of each fabric, along with specifications and application suggestions. Swatches are approximately 2 inches. Ni/Cu/Co tape, Threads, Hook & Loop, and Copper Wire Mesh not included in standard sampler, so if you need these, be sure to specify. Booklet includes a coupon worth $25 towards any fabric from our line. Fabric Sampler Booklet (Cat. Laundry Detergent For Shielding Textiles With Silver Or Stainless Steel Threads.
Special recipe detergent preserves the shielding performance, saves the environment and is suitable for many allergy sufferers. After many years of experience with shielding fabrics we found out that some laundry detergents are bad for the shielding attenuation. 1 liter is enough for 20 loads. Ingredients: MSDS sheet (pdf), German & English QTC™ (Cat. Electrostatic discharge - Wikipedia. Sudden flow of electric current between two electrically charged objects by contact Electrostatic discharge (ESD) is a sudden and momentary flow of electric current between two differently-charged objects when brought close together or when the dielectric between them breaks down, often creating a visible spark associated with the static electricity between the objects.
ESD can create spectacular electric sparks (lightning, with the accompanying sound of thunder, is an example of a large-scale ESD event), but also less dramatic forms which may be neither seen nor heard, yet still be large enough to cause damage to sensitive electronic devices. Electric sparks require a field strength above approximately 4 × 106 V/m in air, as notably occurs in lightning strikes.
Other forms of ESD include corona discharge from sharp electrodes, brush discharge from blunt electrodes, etc. ESD simulators may be used to test electronic devices, for example with a human body model or a charged device model. Block Radio Waves. Key concepts Physics Radio waves Electricity Electromagnetism Wireless communication Introduction Have you ever wondered how a radio can receive music and news broadcasts over thin air?
Radios, as well as radio-controlled cars and cell phones, all receive information via invisible waves. Some of these waves are called radio waves. Radio waves are a type of electromagnetic radiation, a kind of energy that also includes visible light. Radio waves are not harmful but are in fact extremely useful for communicating across long distances. Background A transmitting antenna, or transmitter, generates and sends out radio waves thanks to a specific electrical current. When the electromagnetic radio waves hit a receiving antenna, or receiver, such as a radio, it generates a current inside of a wire in the receiver. Preparation • First check the radio-controlled car and its remote control to make sure they both have fresh batteries.
Procedure • Wrap the remote control in cotton. No, cell phones are not “cooking men’s sperm” I’ve written several times over the years about the overblown claims of harm attributed, largely—but not exclusively—by cranks, to cell phone radiation. It’s been claimed that radiation from cell phones can cause brain tumors (there’s no convincing evidence that this is true), breast cancer (the evidence for these claims is so incredibly flimsy—and featured by Dr.
Oz, to boot! —that this is not a credible claim), and a wide variety of other health issues. Indeed, if you believe the cranks, the mobile phone companies are the equivalent of tobacco companies denying that their products cause massive harm. Never mind that, based on pure physics alone, it is incredibly unlikely that radio frequency radiation can cause cancer. Fertility experts are warning man that using a mobile for as little as an hour a day is “cooking sperm” and lowering level significantly. What utter rot! This is irresponsible journalism (and science communication, to boot—I mean you, Prof. So what about the study? Wow! Cell Phones and Cancer Risk Fact Sheet - National Cancer Institute. Inskip PD, Hoover RN, Devesa SS. Brain cancer incidence trends in relation to cellular telephone use in the United States. Neuro-Oncology 2010; 12(11):1147–1151. [PubMed Abstract] Deltour I, Johansen C, Auvinen A, et al.
Time trends in brain tumor incidence rates in Denmark, Finland, Norway, and Sweden, 1974–2003. Journal of the National Cancer Institute 2009; 101(24):1721–1724. Mobile phone radiation and health - Wikipedia. A man speaking on a mobile telephone The effect of mobile phone radiation on human health is a subject of interest and study worldwide, as a result of the enormous increase in mobile phone usage throughout the world. As of 2016[update], there were 7.4 billion subscriptions worldwide, though the actual number of users is lower as many users own multiple mobile phones.[1] Mobile phones use electromagnetic radiation in the microwave range (450–2100 MHz).
Other digital wireless systems, such as data communication networks, produce similar radiation. In 2011, International Agency for Research on Cancer (IARC) classified mobile phone radiation as Group 2B – possibly carcinogenic (not Group 2A – probably carcinogenic – nor the dangerous Group 1). Effects[edit] Many scientific studies have investigated possible health symptoms of mobile phone radiation. These studies are periodically reviewed by scientific committees to assess overall risks. Radiation absorption[edit] Thermal effects[edit] Plastic Could Protect Astronauts from Deep-Space Radiation | Galactic Cosmic Rays. Plastic shielding could help protect astronauts from harmful radiation on long journeys through deep space, new observations from a NASA moon probe suggest. An instrument aboard NASA's Lunar Reconnaissance Orbiter (LRO) found that plastic reduces the radiation dose from fast-moving charged particles called galactic cosmic rays.
Scientists have long suspected that this is the case, but the new results provide a vital confirmation in deep space, researchers said. "This is the first study using observations from space to confirm what has been thought for some time —that plastics and other lightweight materials are pound-for-pound more effective for shielding against cosmic radiation than aluminum," lead author Cary Zeitlin, of the Southwest Research Institute in Boulder, Colo., said in a statement. [Future Visions of Human Spaceflight] Galactic cosmic rays are tiny, super-energetic wrecking balls blasted into space by distant star explosions and other dramatic events. Hazmat suit - Wikipedia. A hazmat suit (hazardous materials suit) is a piece of personal protective equipment that consists of an impermeable whole-body garment worn as protection against hazardous materials.
Such suits are often combined with self-contained breathing apparatus (SCBA) to ensure a supply of breathable air. Hazmat suits are mostly used by firefighters, Emergency Medical Technicians, Paramedics, researchers, personnel responding to toxic spills, specialists cleaning up contaminated facilities, and workers in toxic environments. Capabilities[edit] Overview[edit] DEA agents wearing Level B hazmat suits. The United States Department of Homeland Security defines a hazmat suit as "an overall garment worn to protect people from hazardous materials or substances, including chemicals, biological agents, or radioactive materials.
Chemical agents through the use of appropriate barrier materials like teflon, heavy PVC or rubber and Tyvek Nuclear agents Biological agents Fire/high temperatures Ratings[edit] Level A. Radiation protection - Wikipedia. Radiation protection, sometimes known as radiological protection, is defined by the International Atomic Energy Agency (IAEA) as "The protection of people from harmful effects of exposure to ionizing radiation, and the means for achieving this". The IAEA also states "The accepted understanding of the term radiation protection is restricted to protection of people. Suggestions to extend the definition to include the protection of non-human species or the protection of the environment are controversial".[1] Ionizing radiation is widely used in industry and medicine, and can present a significant health hazard. It causes microscopic damage to living tissue, which can result in skin burns and radiation sickness at high exposures (known as "tissue" or "deterministic" effects), and statistically elevated risks of cancer at low exposures ("stochastic effects").
Fundamental to radiation protection is the reduction of expected dose and the measurement of human dose uptake. Protection groups[edit]