Daily Archives: December 11, 2006

Zubbles: The Colored Soap Bubbles

Bubbles have long been a source of delight and fascination for children the world over and a subject related to colloidal chemistry.

Now, after ten years of experiments and discoveries, the creative minds at Ascadia have done what scientists claimed was impossible… we’ve combined the simple joy of bubbles with the beauty and magic of color, inventing the world’s first real colored bubbles.

For the first time, children will be able to choose their favorite Zubbles from a range of rich, vibrant colors, and experience the magic of watching colored bubbles float through the air. And, using a new class of patent pending specialty dyes developed by C2C Technologies, the color in Zubbles magically disappears when exposed to air, water or pressure.

How they work

In a normal soap bubble, surfactants lessen the surface tension of the water and allow the bubble to form. To create a colored bubble, dye molecules must bond to the surfactants. Each dye molecule in Zubbles is a structure known as a lactone ring. When the ring is closed, the molecule absorbs all visible light except for the color of the bubble. However, subjecting the lactone ring to air, water or pressure, causes the ring to open. This changes the molecule’s structure to a straight chain which absorbs no visible light.

zubble-2.jpg

Lactone rings can be produced whenever a long chain molecule contains acid functionality on one end, and alcohol functionality at the other. The two ends of the molecule react in a condensation reaction, ejecting a water molecule. To drive the reaction back towards the long chain, pressure, heat or an excess of water must be added. This is why the Zubbles dye disappears when you splash water on it, or rub it with your fingers.

zubble-1.jpg

Learn more about surfactants on the website Wikipedia

Here you will see a chemical commercially called TWEEN-80 which is a Polysorbate 80; it is often used in ice cream to prevent milk proteins from completely coating the fat droplets. This allows them to join together in chains and nets, to hold air in the mixture, and provide a firmer texture, holding its shape as the ice cream melts.

Polysorbate 80 is also used in commercial pickle products.

Interestingly, this chemical is also used in oil industry; it is added to acid which is used for stimulation of limestone reservoir, to retard the reaction with formation so that deeper penetration is achieved; itemulsifies the acid so that it becomes hydrophobic and does not react with rock immediataley at the mouth, it penetrates and as it acquires higher temperature (=>80°C) emulsion breaks and free acid is liberated. It was tested in the RGL, ONGC, Panvel for use in Mumbai High field.

Advertisements

Navjot Singh: Laughing Sidhu

Navjot Singh Sidhu whom you can watch on TV laughing without any reason has been sentenced to 3 years jail punishment by high court in Chandigarh on the charges of beating a old man of 61 years age and in the process killing him. Now the chickens have come home to roost for him.

sidhu.jpg

At that time he was acquitted of the crime and he forgot it as a bad dream. But sometime dreams chase you and caught you in the end. Sidhu who is having a gift of gabbiness; who does not allow anyone to speak because he talks incessantly, invokes the name of god and great sufi saints of punjab who taught us all the love of mankind and compassion.

The fact is that Sidhu is the son of an influential person of Punjab and must have been spoiled brat when the incident occurred 18 years back; he was 20 then. After this he has simply forgotten the incident. Became a TV anchor, cricket commentator and was having the best of fun when suddenly this judgement prompted by political situation in  Punjab was handed out to him.

But the man is so arrogant, remorseless and obdurate that not even once he has gone to the bereaved family to say sorry. He has taken the life of a person and even then after the judgement he was invoking the couplets of God.

Smallest Koran

A copy of the Muslim holy book, the Koran, kept at Ningxia Museum in northwest China‘s Ningxia Hui Autonomous Region, has been identified as the smallest Koran in the world.
koran.jpg
Weighing 1.1g, with a length of 19.6 mm, width of 13.2 mm, and thickness of 6.1 mm, the Koran is covered with mauve kraft paper with ethnic designs, the Egyptian national emblem and Arabic text reading “This is a worshipful Alcoran, only people with clean mind and body can carry it, Islamic Calendar 1312.” (1892 A.D.)

Experts noted that though small, the Koran is delicately packed with clear Arabic print. The book was preserved in a small iron box.

He Xinyu, a researcher from Ningxia Museum said that the mini Koran was carried by a Chinese Muslim from Mecca in present-day Saudi Arabia to Ningxia, but it had no historical provenance.

All signs indicated that the book came to Ningxia before 1949. It was excavated in 1959 and has since stayed in the Ningxia Museum except when it has been on exhibition tours.

The Koran was appraised as a State-level cultural relic in 1996 by the State Bureau of Cultural Relics.

He said that the Ningxia Koran was much smaller in size and weight than the Koran discovered in Zhengzhou in central China’s Henan Province, which was listed by the Guinness Book of World Records as the smallest in the world.

This is taken from the following page

http://english.people.com.cn/200205/17/eng20020517_95885.shtml

Mr. Hanif Choudhary who lives in Silchar district of Assam also claims to be in possession of the smallest copy of Koran, smaller than the one in Iran. The copy was brought to India by his uncle while he was serving in British Army in the Iran. He wants the copy to be registered for Guinness book.