SMOKE AND SOUND

The entire world appears to have a fascination with fireworks, and most countries have at least one special day each year where the sky explodes in bright colors and noise. Man has had a fascination with—and been in awe of—fire as well as loud, bright bursts in the night sky going way back in time. What is the appeal of fireworks Yes, they are entertaining, but there is surely something deeper in the human soul that relates to our attraction to these bright explosions. 

---

Base of judgement Fire, Smoke and Sound ( little ) Fire, Smoke and Sound ( big ) ... 

The most ambitious and also least innocuous training devices are the ones which are meant to simulate an atomic bomb. The EX ModO Nuclear Air-Burst Simulator is an air-launched bomb weighing in excess of 500 lb and containing various flash, smoke, and sound charges. With a total of 300 lb of a modified magnesium flare mixture, red phosphorus, and high exPlosive, it produces an impressive fire ball and mushroom cloud. ... 

The aryloxyphosphazene polymers, on the other hand, have been used primarily ia wire and cable coatings and jackets and as fire-resistant, low smoke, closed-ceU foams and sound-barrier sheets. 

Sights, odors, or sounds that could cause pubbc concern or inquiries, such as smoke and odors below hazardous levels—for example, mercaptans or amines... 

Airborne material affecting the quality of indoor air may be classified as gases or particulate matter. Gases which may be potential problems are radon, CO, NOj, and hydrocarbons. Particulate matter may come from tobacco smoke, mold spores, animal dander, plant spores, and others as shown in Table 23-1. Other factors interact to influence our perception of indoor air quality, including humidity, temperature, lighting, and sound level. 

The bar s televisions were tuned to ESPN, where a football player, in an interview, was dealing with his finer emotions. Aretha Franklin, Marvin Gaye and all the other artists who, historically, form the soundtrack of a bar scene in a college town or a home-game weekend fraternity party, played on Blue Smoke s sound sys-... 

Hot gases rise by thermal lift. Hence in the open air they will disperse. Within buildings this is a serious cause of fire escalation and toxic/asphyxiation hazards if smoke and hot gases are able to spread without restriction (or venting) to upper levels. A balanced flue can serve to effectively isolate a combustion process in a gas-fired appliance, but must be sound in construction and unrestricted to avoid leaks. 

Assessment for influenza and pneumococcal vaccine administration and assessment and management of other cardiovascular risk factors (e.g., smoking and antiplatelet therapy) are components of sound preventive medicine strategies. 

Good charcoal is very dark, possesses a bright lustre and somewhat conchoidal fracture it resists gradual pressure to a considerable extent, and produces a sharp sonorous sound when allowed to fell upon a hard body. It should burn when ignited without either flame or smoke, and when handled no stain ought to remain. Although in bulk it floats in water,... 

More recently, modifications in the process of making the basic form of the drug have produced cocaine crystals that spontaneously generate small chunks this product is called Crack—related to the sound the crystals make when heated. It can be smoked and, therefore, will deliver cocaine into the brain as fast as an intravenous injection, but without the inconvenient and potentially unhealthy process of using a needle. 

If smoke is required the blank can be loaded with black powder. Blanks can give the flash and sound of gunfire and can even work the mechanism of a firearm if a blank firing adapter is fitted to constrict the barrel to allow the chamber pressure to be high enough, for the time period required, to operate the moving parts. This is particularly important in military training. 

---