Detonation and Explosion in

Under the German title Raumexplosionen are discussed explosions taking place in large volumes, such as in rooms, chambers, etc. See Refs 

Refs 1) H.H. Freytag, Raumexplosionen durch elektrische Anlagen , VerlagChemie, Zurich(1949) 2) H.H. Freytag, Hand- 

Detonation, Space Catalysis Phenomenon in. See under Detonation Velocity, Influence of Aging of Gelatin Explosives on  

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Introduction. The existing books in English on detonation and explosion by Taylor (See Vol 2 of Encycl, p XII), Cook (See Vol 1, p Abbr 75), Penney St Mullins (See Abbt in this Volume), and Zel dovich St Kompaneets (See under Abbreviations which precede this introduction), do not give a comprehensive description of all subjects related to detonation and explosion. In most cases there is too much mathematics in them and no clear definition of items. Since the alphabetical indices in the books of Taylor, Cook and Penner Mullins are not very complete and since the book of Zel dovich 8t Kompaneets has no index at all, it is difficult, in some cases to find the desired items... 

Section 4 Experimental Procedures, and remaining Sections contain subjects related to Detonation and Explosion in alphabetical order. 

Break-Up of Solids hy Detonation (and Explosion). See under Deformation and Break-Up of Solids by Detonation (and Explosion) in this section... 

Detonation and explosion in condensed phase (solid or liquid as opposed to gas, dust or vapor) explosives were briefly discussed in Vol 3 of our Encycl, p C495-R, under "Condensed Explosives , but the following comments of C.G. Dunkle (Ref 22) may be added. His discussion is based mainly on the information obtained at the lOthSympCombstn (1964) and other Symposiums... 

Detonation (and Explosion) in Condensed Media (or Phase). See Detonation (and Explosion) of Condensed (Liquid and Solid) Explosives and also Detonation (and Explosion) of Composite Explosives... 

Detonation, Cylindrical and Spherical in Gases. See under Detonation (and Explosion) in Gases... 

On the Mechanism of Generation of Shock Waves, Their Amplification on Interaction With the Flame and Transition to Detonation , 12thSympCombstn, Poitiers, France (1968) (Pub 1969), pp 149-50, Paper 85 (Abstracts) (Paper not found in published Symposium) [See also Refs under Detonation (and Explosion) in Gases ]... 

Detonation (and Explosion) in Media of Variable Density. The study of this topic was conducted by some Rus scientists because it was considered that the problem has an application on the cosmic scale such as in explosions (evidenced by flare-ups) of novae and supernovae stars... 

Definition of spike pressure and probability of its existence are briefly discussed in this Vol under Detonation (and Explosion) in Condensed-Phase Explosives". The so-called spike theory is discussed under "Detonation, Spike Theory in . A more detailed description is given by Cook (Ref 41, pp 69-87)... 

Kompaneets (I960), p 74 (Mikhel son Line) Note A more comprehensive description of Mikhel son Line, which we call Rayleigh-Mikhel son Line is given under Detonation (and Explosion) in Gases (Eq 9 Fig A)... 

Gas Pressure Developed on Explosion or Detonation is defined under Pressure of Gases Developed on Explosion or Detonation in Vol 1, p XX. See Also under Detonation (and Explosion) in Gases in Vol 4, p D352... 

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