Balakrishna Balan

Various disputes on the use of propellant and design of the future moon rocket and other strategic disagreements within the industry put

It is easy to get a betta for a small amount of money. They keep them in small glasses, bowls and vases.

Most of the people who buy them don't know much about the care of these fish, which is more complex and expensive than they think.

Where do betta fish originate?

Betta fish are native to Asia, where they live in shallow water in swamps, ponds, or slow moving streams.

Most bettas sold commercially around the world come from breeding farms in Thailand and other countries in Southeast Asia, where it is common to keep them in small bottles.

When it's time to package them for shipment to Europe or the US, the fish are thrown into net-covered baskets and placed in small plastic cups.

These animals are subjected to poor care from the time they are born on a breeding farm to when they are sold to pet stores. Not to mention those who die along the way.

Can they live in captivity?

Betta fish can feel depressed and frustrated in captivity. Some people are well-suited to living alone in an aquarium, but other animals need an environment filled with plants, caves, and space to explore.

They experience stress when other non- compatible fish are put in the same tank as them.

Bettas are living beings with individual wants and needs and should never be traded or sold as objects.

Buying one of them in a pet store or at a fair isn't saving him, it's helping the exploitation and trafficking of an entire species. Keeping him in an aquarium will fill our house with the suffering of an animal that should be able to swim free in its natural habitat.

There is more information on animal trade here.

The heat source for our planet is the sun. Energy from the sun is transferred through space and through the earth's atmosphere to the earth's surface. Since this energy warms the earth's surface and atmosphere, some of it is or becomes heat energy. There are three ways heat is transferred into and through the atmosphere:

If you have stood in front of a fireplace or near a campfire, you have felt the heat transfer known as radiation. The side of your body nearest the fire warms, while your other side remains unaffected by the heat. Although you are surrounded by air, the air has nothing to do with this transfer of heat. Heat lamps, that keep food warm, work in the same way. Radiation is the transfer of heat energy through space by electromagnetic radiation.

Most of the electromagnetic radiation that comes to the earth from the sun is invisible. Only a small portion comes as visible light. Light is made of waves of different frequencies. The frequency is the number of instances that a repeated event occurs, over a set time. In electromagnetic radiation, its frequency is the number of electromagnetic waves moving past a point each second.

Our brains interpret these different frequencies into colors, including red, orange, yellow, green, blue, indigo, and violet. When the eye views all these different colors at the same time, it is interpreted as white. Waves from the sun which we cannot see are infrared, which have lower frequencies than red, and ultraviolet, which have higher frequencies than violet light. It is infrared radiation that produce the warm feeling on our bodies.

Most of the solar radiation is absorbed by the atmosphere and much of what reaches the earth's surface is radiated back into the atmosphere to become heat energy. Dark colored objects, such as asphalt, absorb radiant energy faster than light colored objects. However, they also radiate their energy faster than lighter colored objects.

Learning Lesson: Melts in your bag, not in your hand

Conduction is the transfer of heat energy from one substance to another or within a substance. Have you ever left a metal spoon in a pot of soup being heated on a stove? After a short time, the handle of the spoon will become hot.

This is due to transfer of heat energy from molecule to molecule or from atom to atom. Also, when objects are welded together, the metal becomes hot (the orange-red glow) by the transfer of heat from an arc.

This is called conduction and is a very effective method of heat transfer in metals. However, air conducts heat poorly.

Convection is the transfer of heat energy in a fluid. This type of heating is most commonly seen in the kitchen with a boiling liquid.

Air in the atmosphere acts as a fluid. The sun's radiation strikes the ground, thus warming the rocks. As the rock's temperature rises due to conduction, heat energy is released into the atmosphere, forming a bubble of air which is warmer than the surrounding air. This bubble of air rises into the atmosphere. As it rises, the bubble cools with the heat contained in the bubble moving into the atmosphere.