Artificial bone
Artificial bone - bio material similar to natural human
bones. It was developed by biochemists from Medical
University in Lublin and the Academy of Mining and
Metallurgy in Krakow. Work on the creation of the
material lasted two years. A team of scientists was led
by professor Grażyna Ginalska. A synthetic bone is a
white, firm substance with hard and elastic structure,
similar to construction natural bones of a human being.
It can be soped with antibiotics and it avoids contagion
in the implantation place. The substance doesn't have
any side effects, doesn't cause allergic reactions, speeds up the healing of wounds, perfectly
fits in the living tissue and bone cells combine to produce also the blood vessels. One of the
components of the artificial bone is hydroxyapatite, a mineral occurring in the nature among
others in the bones of human, animal and in the corals. Artificial bone is used for refilling
after injuries and cancer of the bone, as well as inflammation after tooth removals and
periodontists.
Faustyna Szkutnik, I TB
Polish people in the 2nd World War.
A mine detector was constructed during 2nd world war
by the Polish lieutenants Józef Kosecki i Andrzej Garboś
who served in Polish Military Forces.
It is composed of headphones, a bamboo stick with the
plate in the end and a measuring camera in the
backpack. In the plate there were two reels which made
the electromagnetic field . When it detects metal it
signals by whistling. A mines weeper moved the plate
upon ground and found thanks to the sound localization
of mines placed in the ground . First trials of the
prototype were executed in Bari Town in Scotland on
the 5th March 1942
Doroż Marcin,Dawid Maciejak, Magdalena Mydlarz I TB
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