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.

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?

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).

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.

Hippopotamus lives as a frog!

As school kids, we wondered about an animal that lives in water. We imagined it then as a buffalo lying in tank and taking bath. It is the Hippopotamus (Hippopotamus amphibius, 'Neer Yaanai' in Tamil meaning 'water elephant'). When we saw it in a zoo then, it resembled a large sized pig, that is lying in mud avoiding sun's heat! Submerged in water, it was also like a frog or a crocodile, showing only its nostrils, eyes and ears above the water surface.

Moon's play - Waxing and Waning!

In the past adamant children were fed by mothers at dinnertime showing the mesmerizing moon on the sky; children too stopped their crying and chewed in the food seeing the charm of the moon. Children seem to be indulging in these thoughts: why this moon is not stable and goes on changing day by day - waxing sometimes and waning sometimes! OK. Now, why there are these waxing and waning in Moon?

Playing with this Blister Beetle!

Each day one will see at least an insect where ever he is in this world. But one insect will make anyone remember about it at anytime by its peculiar habit as it is to me! This insect is a beetle that sprays pungent gas whenever one irritates it by teasing it. This is the Common Indian Red spotted Blister Beetle (Mylabris pustulata, Orange Beetle, 'Pithaan Pithaan' in Tamil).

Sparkling light-show by Firefly Squids!

I have seen worms glow, and flies flash lights on and off at night. Such natural powers are also seen in deep sea creatures. Such a creature is a squid that flashes deep blue light from all of its body! It is called Firefly Squid (Watasenia scintillans). It lives in West Pacific Ocean at a depth of about 1200 feet.

Aromatic repellant, the Mothballs!

In my childhood, one object drew my attention much by its smell! Even at these present days I could smell and detect its presence in any other materials that had contact with it: we can detect it by its characteristic aromatic odour - even when this odour is present in its lowest concentration! This object is white and round; and is commonly seen in households. It is nothing but our Mothball. Its content chemical is either Naphthalene or Para-dichlorobenzene. Its Tamil names are 'Mannenaikundu', 'Patchaa urundai', 'Anthurundai'.