wartlike patches of skin, sometimes swimming upside down, big as sunken galleons, hot-blooded and holding theirbreathin cold and utter darkness while the greatest tides on Earth surge by. Then they open their cavernous maws to let the currents sweep food straight in. This is one way North At...
Fixing imperfections.If there are any cracks or holes present in your concrete, repair them with a concrete filler and then sand down the area. This creates a seamless blend between the previous concrete and the newly filled area. Preparing for a finish.If you want to add a sealant or fini...
" or levels of abrasiveness. Coarse grits have a lower number of particles per inch and are used for the first round of sanding to remove big pieces of material that make the surface uneven.
Tierra del Fuego, at the southern tip of the Americas, is brimming with an incredible menagerie of life. This is the plan to keep it that way.
Caves in Afghanistan burrow into mountainsides, and immense concrete bunkers lie buried deep in the sand in Iraq. These hardened facilities house command centers, ammunition depots and research labs that are either of strategic importance or vital to waging war. Because they are underground, they ...
<p>To separate a mixture of sand, soil, and iron particles, we can follow these steps:</p><p>1. <strong>Gather Materials</strong>: Collect the mixture of sand, soil, and iron particles, and obtain a magnet.</p><p>2. <strong>Use the Magnet</strong>: Bring
HOW THE SANDFISH LIZARD FILTERS PARTICLES AND WHAT WE MAY LEARN FROM ITThe sandfish lizard Scincus scincusspends its life in the aeolian dune deserts. To prevent sand grains from entering its lungs, it is hypothesized that the particles are aerodynamically filtered......
Earthbag homes are exactly what they sound like -- bags filled with earthen materials stacked to make a house. They often look like big beehives when they're completed, but it's possible for them to take other forms as well. Sandbags have long been used to create military bunkers and flo...
Tip: Along with the bedding, add a small amount of grit to your bin, such as a handful of garden soil or sand. Composting worms need some grit to help break down food particles and aid in digestion.COMPOSTING WORMS: Only use red wiggler worms (Eisenia fetida) in your bin, which you ...
The average cat is happiest with fine, unscented clumping cat litter. Cats are typically not big fans of the scented varieties that many people tend to prefer. They often dislike the crystal-type litters as well — most sizzle when they get wet, so you can imagine why that would be unplea...