Author Archives: ktwop

About ktwop

Scientist, technologist, salesman, manager, executive and now a consultant and author.

Spread of agriculture was not only by migration but also by diffusion

The Baltic region developed agriculture before the large migrations of the bronze age. The Neolithic transition therefore was not only by migration (as in Southern Europe) but also by the diffusion of culture to hunter gatherers in the Baltic region. Continue reading

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Yellow River sedimentary evidence dates the Great Flood of China, and the start of the Xia dynasty, at 1920 BCE

The earliest historical records of Yu start only about 1,000 years after his death. It was thought that Yu lived around 2,200 BCE. A new paper in Science reports on studies of Yellow River sediments and suggest that the cause of the flood was a landslide, caused by an earthquake, that planted a massive natural dam across the Yellow River where it travels through the Jishi Gorge after emerging from the Tibetan plateau. Continue reading

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Rope making more than 40,000 years old

If they had rope and twine, they had thread. If they had thread, they probably had some form of garments. If they had twine, they had the “technology” for bows and arrows. If they had rope they would also have had the capability to drag heavy weights across primitive rollers. Continue reading

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Harappan civilisation started earlier, lasted longer

What is striking is how the two great rivers, the Indus and the Saraswati (Ghaggar or Hakra), totally dominated the landscape. It is not surprising that an advanced water management “technology” developed. The growth of managed agriculture and trade followed. The period of intensified monsoon from 7,000 BCE to about 5,000 BCE could have been a time of plenty which promoted growth and settlement. Continue reading

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When humans were prey for hyenas

Human ancestors had rudimentary control of fire some 1.5 – 2 million years ago, and that was the single event that led to the inevitable journey to becoming the dominant species. But though fire made dominance inevitable, it was a slow process. A new paper shows that tooth marks on the bones of a 500,000 year old hominin were caused by a large carnivore and indicating that the hominin had been consumed. Continue reading

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An Indus-Saraswati Valley map

A detailed map of the Indus-Saraswati Valley showing pre-harappan, Harappan and post Harappan sites and the presumed course of the river Saraswati. Continue reading

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Dog domestication — the real story

Dog domestication Continue reading

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