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Science + Tech – Articles, Analysis, Comment

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Coding can enhance children’s creativity and their understanding of mathematics. wavebreakmedia/Shutterstock

Why all children must learn code

Coding is beneficial to children, irrespective of their career path later on in life.
A rock surface containing a circular pattern with a central depression. The scale bar = 10 cm. Images modified from: Helm, C.W.; Cawthra, H.C.; De Vynck, J.C.; Helm, C.J.; Rust, R.; Stear. W. Patterns in the Sand: A Pleistocene hominin signature along the South African coastline? Proceedings of the Geologists’ Association (2019)

Ancient humans may have made patterns and sculptures on South Africa’s beaches

Given that we know humans moved across these landscapes, we wondered whether there might also be evidence of other forms of human activity on these surfaces of sand.
The view of our planet from aboard the International Space Station. Expedition 43/NASA

Curious Kids: What is the Earth made of?

Of all the planets in the solar system, there’s a reason we call Earth home. It’s made of just the right stuff. It’s not too small, or too big, or too hot or too cold. It’s just right.
Green roofs, like this one in Sao Paulo, Brazil, have many benefits. Leonardo Ikeda/Shutterstock

How buildings in Johannesburg could benefit from green roofs

South Africa needs to develop low-cost housing solutions that are inherently comfortable and environmentally sustainable. Green roofs could be part of these solutions.