• Articles


    Hungry and angry, Another food riot breaks out in the streets… – The world food crisis is growing. For the millions of people around the world struggling to buy the most basic of food stuffs these are desperate times. Rich countries are racing to buy and lease agricultural land abroad, and secure their food supplies for the future. Africa, know for its fertile land and low priced agricultural real estate, has become the target of wealthy investors. Dear Listeners, this is Radio Jamakan, greetings to you all. It’s no longer a rumour that in this region we are waiting for the Sosumar sugar cane project. 1,000 square kilometres at a…

  • Articles

    Land Formation in Iowa

    Iowa was covered by glaciers until 15,000 years ago. These massive flowing sheets of ice would creep along like very slowly moving rivers, picking up lots of different minerals, rocks, soil and debris along the way. As the glaciers melted, rocks and minerals got left behind. We call this glacial till. The water, from the ice melt, is the foundation of our many river valleys as well as some of our lakes and wetlands. These rocks and minerals were slowly broken down by water and microorganisms to form new soil. Iowa’s landscape gradually became covered in a vast Prairie, consisting of hundreds of species of grasses, flowers, birds, mammals, insects…

  • Using Property Charts of Water
    Articles,  Blog

    Using Property Charts of Water

    When solving thermodynamic problems involving water, we rely on the state properties to calculate changes. Let’s see how we can use water property charts to acquire state properties. Let us get familiar with a temperature-entropy chart for water. With this we plot the constant pressure lines, isobars, the constant specific volume lines, the isochors and finally the constant enthalpy lines. We understand that we can use these charts to acquire state properties, say within the saturated or the superheated region. Of course, we need a more detailed chart to solve common thermodynamic problems in the textbook. So let us build one. A detailed T-s Property Chart has numerous constant property…

  • Materials and their Properties Song | Science Music Video for Kids
    Articles,  Blog

    Materials and their Properties Song | Science Music Video for Kids

    What have I got here? It’s a spoon What’s the material? It’s made of metal What object is this? It’s a bag What’s it made of? It’s plastic Objects are things, a clock, a T.V. Matter makes them up, all things, you and me Some materials are hard, some are soft Some are smooth, and some are rough Objects are things, like a clock, a T.V. Matter make them up, all things, you and me Some materials are shiny, and some are dull Some float, some sink like stone What have I got here? A bowl The material is? Wood And what’s it made of? It’s wool What object is…

  • Moving Water Shapes the Land
    Articles,  Blog

    Moving Water Shapes the Land

    Hi, I am Jared, welcome to Fun Science Demos. I have in my hand a tray of dirt and leaves and sticks and rocks. And I have this spoon and I have the power to change the shape of that dirt and land and rocks. Well, we are out here in the woods surrounded with dirt and rocks and sticks. I look around and think to myself, Well what changed the shape of this land? What had the power to change the shape for this land? Well it certainly was not a spoon. It is water. I am standing in water, moving water and that is the big idea today.…

  • Visualizing Soil Properties: Water Infiltration
    Articles,  Blog

    Visualizing Soil Properties: Water Infiltration

    (soft music) -[Robert Flynn] I’d like to show you some demonstrations about soil, but using a sponge. A sponge is very similar to this soil, in the fact that it has pore spaces. These large holes in the sponge can represent larger pores in our soil. It, also, has very small holes or small open spaces within the soil or within the sponge. So, very similar. And it, also, has all the solid material as what we would see in a soil: sands, silts, and clay’s. Very good way to demonstrate some soil property terminology that we oftentimes talk about to our farmers and to our homeowners about how to…

  • Articles

    What are the Properties of Liquids? Surface Tension, Viscosity, Special Properties – Chemistry Tips

    In this video, I’ll talk about the properties of liquids — specifically, the surface tension, the viscosity, and the special properties of water. Now, the definition of the surface tension is “the amount of energy required to stretch or increase the surface of a liquid by a unit area.” So we have a water strider here, to give an example of this. This water strider is kind of floating or using the idea of surface tension to help it stay on top of the water. And here’s what’s happening. If you have all of these water molecules, they are all bunched together, and you’ve got a glass full or a…

  • Properties of Water | Hydrogen Bonding in Water | Biology | Biochemistry
    Articles,  Blog

    Properties of Water | Hydrogen Bonding in Water | Biology | Biochemistry

    Water is essential for Life. Here are the numbers: We can go weeks without food, but we’ll die in a few days if we don’t have water. A living cell is about 75-95% water, depending on the organism. We humans are about 60% water – and there are some organisms that are as much as 90% water! Water covers about 75% of the Earth’s surface. Good thing for us, then, that water is so well-suited to support life. What is it about water that makes it so special? How does water support life? Water has many special properties that make it the “solvent of life.” Chief among these properties is…

  • 9 Fish That Hunt Land Animals
    Articles,  Blog

    9 Fish That Hunt Land Animals

    from one species that can effectively walk out of the water to another which is known as the fish from hell here are nine fish that can hunt land animals before we begin be sure to subscribe – they will kill you hit the like button and request any topics you’d like to learn about in the comments section below number nine mudskipper mudskippers are found in temperate subtropical and tropical regions including the Atlantic coast of Africa and the Indo Pacific like the name would suggest this fish has several fascinating adaptations which enable it to travel on land as well as in the water they’re able to walk…