Protecting Iron Nails from Rust

Protecting Iron Nails from Rust Rust is an iron oxide, a usually red oxide formed by the reaction of iron and oxygen in the presence of water or air moisture. Several forms of rust are distinguishable both visually and by spectroscopy, and form under different circumstances. Given sufficient time, oxygen, and water, any iron mass will eventually convert entirely to rust and disintegrate. Surface rust is …

How to make Rochelle Salt (Potassium Sodium Tartrate)

How to make Rochelle Salt (Potassium Sodium Tartrate) Rochelle Salt (Potassium Sodium Tartrate) a crystalline solid having a large piezoelectric effect (electric charge induced on its surfaces by mechanical deformation due to pressure, twisting, or bending), making it useful in sensitive acoustical and vibrational devices. In 1824, Sir David Brewster demonstrated piezoelectric effects using Rochelle salts, which led to him …

Burglar Door Alarm

Burglar Door Alarm The last time I did an alarm that's under a mat and it received a lot of likes. The link for that is here: How to Make a Burglar Alarm Mat. So today I have another alarm to make, and it involves a door. Make sure to follow the pictures and have fun. Things …

Leaf Fish

Leaf Fish Do you know what camouflage is? Camouflage is the use of any combination of materials, coloration, or illumination for concealment, either by making animals or objects hard to see (crypsis), or by disguising them as something else (mimesis). Examples include the leopard's spotted coat, the battledress of a modern soldier, and the leaf-mimic katydid's …

Eggs are Strong

Eggs are Strong Next time someone's cooking with eggs around your house, save the eggshells so that you could astound your friends with this incredible stunt. Things you'll need: 4 raw eggs, a small pair of scissors, masking tape, some books. To crack the eggs and get four empty eggshells, gently break open the small end …

The Wood-nettle: a Plant that could Sting like a Bee

The Wood-nettle: a Plant that could Sting like a Bee This will be a short post. If you're interested please continue reading. There are lots of poisonous plants out there. But not as painful as this one: Laportea canadensis, commonly called Canada nettle or wood-nettle, is an annual or perennial herbaceous plant of the nettle family Urticaceae, native …

Walking Fishes

 Walking Fishes Can fishes walk on land? Sounds crazy! But these two fish can. 1.  Mudskippers are amphibious fish, presently included in the subfamily Oxudercinae, within the family Gobiidae (gobies). Recent molecular studies do not support this classification, as oxudercine gobies appear to be paraphyletic relative to amblyopine gobies (Gobiidae: Amblyopinae), thus being included in a …

Ice is Sticky

Ice is Sticky I have an experiment that uses only ice. Things you'll need: 2 ice cubes. Press the flat sides of two ice cubes together. Slowly count to thirty, then let go one of the ice cubes. What happened? When you pushed the two ice cubes together, you created pressure between the two flat sides. …

Mushroom Spores

Mushroom Spores A mushroom is the fleshy, spore-bearing fruiting body of a fungus, typically produced above ground on soil or on its food source. The standard for the name "mushroom" is the cultivated white button mushroom, Agaricus bisporus; hence the word "mushroom" is most often applied to those fungi (Basidiomycota, Agaricomycetes) that have a stem (stipe), …

The Sleeping Grass

The Sleeping Grass Mimosa pudica (from Latin: pudica "shy, bashful or shrinking"; also called sensitive plant, sleepy plant, Dormilones, sleeping grass, or shy plant) is a creeping annual or perennial herb of the pea family Fabaceae often grown for its curiosity value: the compound leaves fold inward and droop when touched or shaken, defending themselves from …

Butterflies

Butterflies The family of butterflies and moths is called Lepidoptera. The earliest known butterfly fossils are from the mid Eocene epoch, between 40-50 million years ago. But no one knows which was the first butterfly on earth. The first butterfly onThailand is the Butterfly bush burning sugar (Papilio arcesilaus). The largest butterfly in the world …