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The science of what Doom bug spray does to humans

You writhe in pain, your limbs twitch uncontrollably, you get convulsions all over your body, your heart stops, you stop moving, you die. This is what happens to you when you are sprayed with Doom insecticide. Also, this only happens if you happen to be a pesky insect who has upset a human overlord. This…

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How long until we lose the moon?

Interested in local research about the moon? Then read this article by Sphumelele Ndlovu of the Hartebeesthoek Radio Astronomy Observatory (HartRAO) and the University of KwaZulu-Natal, which first appeared in the latest edition of Science Today.   The Moon, every year, moves away from Earth by about 3.8 cm. It seems very small, about the…

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Shisa Sayensi- Isayensi yeviki 25 October 2016

Nazi ezihamba phambili ezeSayensi eNingizimu Afrikha kuleliviki. Shisa Sayensi! Yavelaphi imfuyo egcwele eningizimu ye-Afrika Iningi lethu alithathi isikhathi sokucabanga ukuthi lemfuyo esiyibona emakhaya njengezimbuzi nezinkomo ukuthi ziqhamuka kephi. Esifundiswa khona ukuthi yonke imfuyo idaliwe yaba kulesi simo esikuyo kumanje nakulendawo ekuyo kumanje. Ucwaningo oluningi luyaphikisana nalokhu kucabanga njengoba umlando utshengisa ukuthi imfuyo yethu isuka emazweni…

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Shisa Sayensi- Isayensi yeviki 20 October 2016

Nazi ezihamba phambili ezeSayensi eNingizimu Afrikha kuleliviki. Shisa Sayensi! Ayilahlwe yonke isayensi: kusho owesifazane efuna emfundo eguqukile Kusukela kuqale imibhikisho yezimali yabafundi basemanyuvesi isivuse inkulumo mayelana nenhlobo yemfundo ekhishwayo kulezi zikhungo. Inhloso yalezi zinkulumo ukutshengisa ukuthi imfundo, okubalwa kuyo izimfundo zesayensi, yenzelwe abaphesheya kwezilandle, emazweni asempumalanga. Lokhu kungajabuli ngalemfundo kubonakale kokuqoshiwe owesifazane wasenyuvesi yaseKapa ethi…

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Citizen scientist project: Snap SA’s clouds too

Have you recently just felt like having one of those days where you’d like to do nothing better than to lie on your back and watch clouds pass by? But then reality and your work ethic kicked in? Well, thanks to the citizen science project “Global Experiment” you have a very good reason to do…

An Atherigon fly visiting a yellow carrion plant. Photo: Adam Shuttleworth

Carrion plant’s (only) little helper

Not all flies attracted to foul-smelling carrion plants help with its pollination In the life cycle of smelly yellow carrion plants (Orbea lutea subsp. lutea), all flies are not created equal. Their flowers, which quite literally reek, lure insects from far and wide that are attracted by the smell of decaying matter and faeces. However,…

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Shisa Sayensi- Isayensi yeviki 27 September 2016

Nanka amangqampungqampu ezeSayensi eNingizimu Afrikha kuleliviki. Shisa Sayensi! Abantu umhlaba wonke basuka eAfrika, ucwaningo Kumhlaba wonke jikelele kukhona izizwe ezinhlobonhlobo zonke okuthiwa zisuka endaweni eyodwa; izwekazi le Afrika. Kudala kwakwaziwa ososayensi ukuthi izizwe zonke zomhlaba inkaba ziyikhomba e-Afrika lapho okwasuka khona abantu bahamba bagcwala umhlaba ngeminyaka edlulela kwengama-50 000, kodwa bekungaziwa kahle ukuthi kwenzeka izikhathi ezingaki…