Time bomb

Nitrate has been described as a biological time bomb . Those who enjoy their doom and gloom will be pleased to hear that there may be two such bombs, one with a physical clock and one with a biological clock. Both can be studied with the aid of computer models. 

If there is a biologically timed bomb, it must lie in the accumulation in the soil s organic matter of nitrogen that will be released as nitrate by microbes at some unknown time in the future. The calculations made in the previous section suggest that, when nitrogen fertilizer is given in excess of the needs of the crop, a... 

When Max Planck wrote his remarkable paper of 1901, and introduced what Stehle (1994) calls his time bomb of an equation, e = / v , it took a number of years before anyone seriously paid attention to the revolutionary concept of the quantisation of energy the response was as sluggish as that, a few years later, whieh greeted X-ray diffraction from crystals. It was not until Einstein, in 1905, used Planck s concepts to interpret the photoelectric effect (the work for which Einstein was actually awarded his Nobel Prize) that physicists began to sit up and take notice. Niels Bohr s thesis of 1911 which introduced the concept of the quantisation of electronic energy levels in the free atom, though in a purely empirical manner, did not consider the behaviour of atoms assembled in solids. 

Zeit-abschnitt, m. period, interval, -abstand, m. time interval, -alter, n. age, period, -angabe, /. date, -aufnahme, /. (Pkotog.) time exposure, -aufwand, m. loss of time, -bombe, /. time bomb, -dauer, /. duration, period of time, -einheit, /. unit of time, zeiten, v.t. time. 

Defusing the Global Warming Time Bomb, 2004. James Hansen—Director of NASA Goddard Institute for Space Studies, Scientific American, Vol. 290, Number 3, March. 

Chang A.C., Hyun H., Page A.L. Cadmium uptake for Swiss chard grown in composted sewage sludge treated field plots Plateau or time bomb J Environ Qual 1997 26 11-19. 

Simon, H. and E. Kucker (1992), The European pricing time bomb and how to cope with it , European Management Journal, 10 (2), 136-45. 

To emphasize our perspective, one should cite a known synonym of ecological risk, a chemical time bomb (CTB). In effect it says that the risk is uncertain as of now, but is both possible and highly probable. 

Ditto, Electrical Time, p51 Type X Ditto, Clockwork Long-Delay, pp 52-53 two types for use in 500-kg time bombs... 

Bomb Fuzes — Spolette per bombe Italian Bomb Fuzes used during WWII were mechanically operated, except for Time Fuzes (Spolette a tempo) used in 500-kg Time Bomb. Most of the fuzes functioned on impact. Normally the fuzes were made of brass, steel or A1 and were coated with shellac or varnish to prevent corrosion. Both nose and tail fuzes were used... 

Military explosives must be physically and chemically stable over a wide range of temperatures and humidity for a long period of time. They must be reasonably insensitive to impact, such as those experienced by artillery shells when fired from a gun or when they penetrate steel armor. They are used for a number of applications. They are fired in projectiles and dropped in aerial time bombs without premature explosion. The raw materials necessary to manufacture such explosives must be readily available for production in bulk during wartime. 

In comparison, the impact on the American wine industry of the fruit-producing hybrids originated by these men was negligible. By then, the Eastern industry, based mainly in New York and Ohio, but with a substantial offshoot in Missouri, was adjusted to the material it already had and remained so. But in sending some of the hybrids they had produced to their French correspondents, they unwittingly laid a time bomb, the effects of which will be considered later on. 

The dumping of wastes at landfill sites is a widespread practice. Indeed, many old sites can be regarded as ecological time bombs. Hazardous substances in landfills are typically mixed with... 

Donoghue, A. (2000), A Software Licensing Time Bomb That May Soon Start Ticking, Computing, May 4. 

Bomb FDA (1995) A Trojan horse that attacks a computer system upon the occurrence of a specific logical event ( logic bomb ), the occurrence of a specific time-related logical event ( time bomb ), or something that is hidden in electronic mail or data and triggered when read in a certain way ( letter bomb ). 

Lacerda L. D. and Salomons W. (1998) Mercury from Gold and Silver Mining a Chemical Time Bomb Springer, New York, 146pp. 

Remediation of landfill leachate plumes has, in most cases, focused on source control. This is due to the fact that landfills are so large that the mass of pollutants contained in the landfill body would be able to sustain the leachate plume for centuries making a remedy focusing on the plume a long and costly approach. Additional reasons for focusing on the source are that the landfill also may be a time bomb containing chemical waste in drums subject to corrosion, landfill gas emission needs to be controlled, improvements of landscape value is requested by the community, and potentially new landfilling capacity is in demand. 

This delay meclianism makes it possible to use an ordinary grenade as a time bomb. 

So any strontium that enters an animai s body is aiso used to buiid bones and teeth. The bad news is that strontium-90 is radioactive, it gives off radiation that kiiis or damages iiving ceiis. it can aiso cause those ceiis to begin growing out of controi. Out-of-controi ceiis iead to cancer. Strontium-90 in bones and teeth is a buiit-in time bomb. As iong as it remains in the body, it has the potentiai for causing cancer in peopie and animais. 

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