Recently, I was stung twice by wasps unusually. I got the second stinging when I tested the wasps whether they differentiate between my body odours or between the colours of my dress. The result of the test, apart from having a stinging, is only that the wasps have become aggressive recently! This kind of wasp is the Paper Wasp (Ropalidia marginata, Vespa ferruginea, 'Sengulavi' in Tamil). These social wasps are much different from other wasps. I find them often build nests in the dark undisturbed storerooms, inside rain water pipes and also even inside the bedrooms!
Thursday, April 4, 2013
Stung by Paper Wasps!
Recently, I was stung twice by wasps unusually. I got the second stinging when I tested the wasps whether they differentiate between my body odours or between the colours of my dress. The result of the test, apart from having a stinging, is only that the wasps have become aggressive recently! This kind of wasp is the Paper Wasp (Ropalidia marginata, Vespa ferruginea, 'Sengulavi' in Tamil). These social wasps are much different from other wasps. I find them often build nests in the dark undisturbed storerooms, inside rain water pipes and also even inside the bedrooms!
Labels:
Insects,
Nature.,
Paper Wasp,
Science,
Wasp
Saturday, March 23, 2013
Birds take to Sand Bathing!
At my younger age, we walked on at evenings to the outskirts of our town, where the railway station is situated. At such one bright evening we saw sparrows fly down to the sandy path that we tread on. They sat on the ground and began to flap their wings to get sand all over their body! This continued on for sometime when another flock of sparrows joined them in doing it.
Labels:
Birds,
Dust Bathing,
Nature,
Parasites,
Sand Bathing,
Science,
Sparrows
Friday, March 8, 2013
Delicacy for man and the microbe, the Agar-Agar!
Kids in 1970s enjoyed their summer holidays freed from the school classes and exams. I enjoyed a vacation by doing a small business :) I bought a few grams of a white substance from the mall, ground it into powder; soaked it overnight in a plate full of water. At morning I was delighted to see the plate full of a jelly-like delicacy. I added colourant and sugar to it and then, the delicacy was ready for sales to the boys and girls! What is that substance that I used?
Labels:
Agar,
Agar-Agar,
chemistry,
China grass,
Japanese isinglass,
Jigarthanda,
Medicine,
Microbes,
Nature,
Red algae
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