لويی پاستور و رد نظريه پيدايش خود بخودي جانداران
ازآنجا که بازار تحقیقات کپی - پیستی دانش آموزان از سایتهای اینترنتی این روزها بسیار داغ است ٬ پیشنهاد می کنم که برای افزایش سطح علمی و کمک به آموزش استفاده از منابع لاتین همکاران وبلاگ نویس متون مربوط به تحقیقات دانش اموزی را به زبان اصلی در وبلاگ ها و وب سایت های خود بیاورند تا حداقل دانش اموزان با کلمات لاتین مربوط به دانش بیولوژی آشنایی پیدا کنند . در این پست من برای شروع ٬ متنی را در باره لویی پاستور و نظریه پیدایش خود بخودی جانداران اورده ام . بسم الله ...
(born Dec. 27, 1822, Dole, France-died Sept. 28, 1895, Saint-Cloud, near Paris) French chemist and microbiologist. His studies of fermentation of alcohol and milk (souring) showed that yeast could reproduce without free oxygen (the Pasteur effect); he deduced that fermentation and food spoilage were due to the activity of microorganisms and could be prevented by excluding or destroying them. His work overturned the concept of spontaneous generation (life arising from nonliving matter) and led to heat pasteurization, allowing vinegar, wine, and beer to be produced and transported without spoiling. He saved the French silk industry by his work on silkworm diseases. In 1881 he perfected a way to isolate and weaken germs, and he went on to develop vaccines against anthrax in sheep and cholera in chickens, following Edward Jenner's example. He turned his attention to researching rabies, and in 1885 his inoculating with a weakened virus saved the life of a boy bitten by a rabid dog. In 1888 he founded the Pasteur Institute for rabies research, prevention, and treatment.
Louis Pasteur demonstrated that the fermentation process is caused by the growth of
Modified version of florence flask (Swan flask) made by Pasteur in his experiment for disproving spontaneous generation theory.
He exposed boiled broths to air in vessels that contained a filter to prevent all particles from passing through to the growth medium, and even in vessels with no filter at all, with air being admitted via a long tortuous tube that would not allow dust particles to pass. Nothing grew in the broths; therefore, the living organisms that grew in such broths came from outside, as spores on dust, rather than spontaneously generated within the broth. Thus, Pasteur dealt the death blow to the theory of spontaneous generation and supported germ theory.