Sunday, December 23, 2012
Refreshing drink - Tender Coconut Water!
In India one can easily identify kiosks selling soft drinks by the bunches of tender coconuts hanging on the front of them. Even in winter these coconuts are available with them, since the water present in them has many other uses apart from being taken as a natural beverage. This Tender Coconut Water ('Elani thannee' in Tamil) found inside the greenish or orange tender coconuts ('Elanee') cools down the body in hot summer; so it is in much demand.
Labels:
Calories,
Medicine,
Natural Beverage,
Nature,
Potassium,
Summer,
Tender Coconut,
Tender Coconut Water
Thursday, December 13, 2012
The ubiquitous foam plastic - Thermocol!
In 1970s, I went to an exhibition conducted by a Polytechnic Institute located at Madurai, South India. There at one of the stalls, students were demonstrating to the public a block of white material that they cut by a heated wire! The hot nichrome wire stretching between two poles cut the block when it was applied from above and pressed down on it.
Labels:
EPS,
Expanded Polystyrene,
Nature,
Plastic,
Polystyrene,
Science,
Technology,
Thermocol
Wednesday, December 5, 2012
Goose bumps by smaller Erector pili muscles!
We notice occasionally that we have raised pimple-like areas on our skin each with a hair in its centre, when we enter into the chillness of outdoors or when we are excited much on seeing 'hair-raising' scenes. These raised skin areas are all well known as goose bumps (or goose flesh). How they are made?
Labels:
Erector pili,
Goose bump,
Medicine,
Science,
Smooth muscle,
Wonder
Monday, November 26, 2012
Green seed pod? No, Green Vine Snake!
In childhood, we used to talk about the exciting stories that we heard - like that of snakes and ghosts. Out of the snake stories there was one that of a green snake that strikes at eyes when one approaches it! It is the Green Vine Snake (Ahaetulla nasuta, Green whip snake, 'Patcha paamboo' or 'Kankotthi paamboo' in Tamil).
Labels:
Animals,
Camouflage,
Green vine snake,
Nature,
Tree
Friday, November 9, 2012
Colourful Coppersmith Barbet
One day at forenoon a curious sound was heard somewhere nearby my house. It was like this: 'tok . tok . tok' repeated for a long time. On careful search outdoors, it revealed the source of it: a bird called Coppersmith Barbet (Megalaima haemacephala, Crimson-breasted barbet). It is called so, because it has its 'call' that resembles the sound produced by a copper smith when he strikes a metal with hammer. It is seen as a small bird like a sparrow; but on closer view its bright colours are revealed.
Labels:
Birds,
Coppersmith Barbet,
Crimson-breasted barbet,
Nature
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