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DYNAMITE „ Requirement is mother of invention, but also grandmother of laziness ”- Jean-Paul Sartre.

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Presentation on theme: "DYNAMITE „ Requirement is mother of invention, but also grandmother of laziness ”- Jean-Paul Sartre."— Presentation transcript:

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2 DYNAMITE „ Requirement is mother of invention, but also grandmother of laziness ”- Jean-Paul Sartre

3 Menu  Invention Invention  Alfred Bernhard Nobel Alfred Bernhard Nobel  Dynamite… Dynamite…  History of Dynamite History of Dynamite  How to make Dynamite? How to make Dynamite?  …our friend …our friend  Nobel prize Nobel prize Next

4 Invention  An invention is an object, patent, process, or technique which displays an element of novelty. An invention may sometimes be based on earlier developments, collaborations or ideas, and the process of invention requires at least the awareness that an existing concept or method can be modified or transformed into a new invention. However, some inventions also represent a radical breakthrough in science or technology which extends the boundaries of human knowledge. Legal protection can sometimes be granted to an invention by way of a patent. Back to menu

5 Alfred Bernhard Nobel  Alfred Bernhard Nobel (October 21, 1833, Stockholm, Sweden – December 10, 1896, Sanremo, Italy) was a Swedish chemist, engineer, innovator, armaments manufacturer and the inventor of dynamite... Back to menu

6 Alfred Bernhard Nobel ... He owned Bofors, a major armaments manufacturer, which he had redirected from its previous role as an iron and steel mill. In his last will, he used his enormous fortune to institute the Nobel Prizes. The synthetic element Nobelium was named after him. Alfred Nobel's deathmask, at his residence Bjorkborn in Karlskoga, Sweden. Back to menu

7 DYNIAMITE  Dynamite is an explosive based on the explosive potential of nitroglycerin using diatomaceous earth (Kieselguhr) as an adsorbent. It is usually sold in the form of a stick roughly eight inches (20 cm) long and one inch (2.5 cm) in diameter but other sizes also exist. Dynamite is considered a "high explosive", which means it detonates rather than deflagrates. Back to menu

8 History of dynamite  Dynamite was the first safely manageable explosive stronger than black powder. Nobel patented his discovery in October He originally sold dynamite as "Nobel's Blasting Powder". After its introduction, dynamite rapidly gained popularity as a safe alternative to gunpowder and nitroglycerin. Nobel tightly controlled the patent and unlicensed duplicators were quickly shut down. However, a few United States businessmen got around the patent by using a slightly different formula. Despite this, dynamite brought Nobel a great fortune, which he used to found the Nobel Prize. Back to menu

9 How to make dynamite?  Dynamite consists of three parts nitroglycerin, one part diatomaceous earth and a small admixture of sodium carbonate. This mixture is formed into short sticks and wrapped in paper. Nitroglycerin by itself is a very strong explosive and in its pure form it is shock-sensitive (i.e., physical shock can cause it to explode), degrading over time to even more unstable forms. This makes it highly dangerous to transport or use in its pure form. Absorbed into diatomaceous earth, nitroglycerin is less shock-sensitive. Back to menu

10 DYNAMITE- our friend...  The chief uses of dynamite used to be in construction, mining and demolition. However, newer explosives and techniques have replaced dynamite in many applications. Dynamite is still used, mainly as bottom charge or in underwater blasting. Back to menu

11 DYNAMITE- our friend...  Dynamite has been used in armed conflicts, mainly to destroy bridges and other ways of travel, to slow the advance of supplies or enemy troops. Enthusiasts interested in safe-cracking have deliberately extracted nitroglycerin from dynamite by boiling the sticks and 'skimming' the nitroglycerin as it is forced out. Back to menu

12 Nobel prize  The Nobel Prizes are prizes awarded annually to people (and, in the case of the Peace Prize, to organizations) who have completed outstanding research, invented ground- breaking techniques or equipment, or made an outstanding contribution to society in physics, chemistry, literature, peace, medicine or physiology and economics. They are widely regarded as the supreme commendation in their respective subject areas. Those honored with a Prize are known as Nobel Laureates. Nobel Prize medal. Original design by the Nobel Foundation. Back to menu

13 The end Made by: Wojciech Bracha © Back to menu


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