PURIFIED BY FIRE

Purified by fire

The cemetery at Dudka was used in the Mesolithic and Para-Neolithic period.It yielded 25 graves with remains of at least 116 individuals, including 52 who were cremated.Cremation was introduced General Wellness in the Para-Neolithic, c.4200 cal BC, and was probably a locally developed custom.Most cremations are dated to the classic Zedmar period, w

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Influence of Tribochemical Reaction on Friction and Wear Behavior of Metallic Materials in n-Hexane and in Ethanol

Cast iron, aluminum metal and sintered aluminum-silicon (Al-Si) were slid against SUS440C stainless steel in n-hexane and in ethanol.In the case of the Pants cast iron/stainless steel and aluminum metal/stainless steel pairs, friction and wear were lower in n-hexane than in ethanol.In contrast, the friction and wear for the sintered Al-Si/stainless

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