Ever picked-up sand dollar on the beach as a child? Well, this is not just a piece of rock that you pick up amongst the others. It really is a living animal. of the order Clypeasteroida in the same class as the sea urchin, the Echinoidea. Just watch this documentary by PBS to learn more about this amazing sea creature. Sand Dollar The Clypeaster reticulatus, or sand dollar, has a rigid exoskeleton (named “test”), consisting basically of calcium. Young sand dollar can swallow sand to increase their weight. They use their spine for breathing, just like fishes use gills. Fun Fact ..read more

Ever wondered how wi-fi really works? Watch this super video from Bright Side that easily explains the process. What is Wi-Fi? Wi-Fi, or wireless fidelity, is a wireless networking protocol that allows multiple devices to be connected without the need of wires. It is radio technology invented by Dr John O’Sullivan that uses radio waves to transmit data from a hotspot to your device. Wi-Fi most commonly uses 2.4 gigahertz and 5 gigahertz radio bands that can be divised in multiple channels. History of Wi-Fi The first schema of Wi-Fi actually came from a failed experiment b ..read more

MrHome Scientist emperiments to make an alloy of metal that looks like gold without using gold.   Making a Gold Like Alloy with Brass In the first experiment, he uses brass, which is an alloy of copper (Cu) and zinc (Zn), that is often used in decorations because of its gold color, The golden appearance will vary depending on the amount of Zinc contained in the Brass Alloy. The more Zinc you add to the preperation the most yellow it gets, making it appear closer to the actual gold color. To complete this Brass alloy, you need to start heating in order of infusibility, adding the m ..read more

NurdRage has made this epic video to show you how to use Potassium Permanganate to make fire. In this video we use Potassium Permanganate to start fires. Potassium Permanganate will directly react with various fuels like glycerol, PEG-based brake fluid, and antifreeze, to start fires. What is Potassium Permanganate? Potassium permanganate is an inorganic chemical compound that has the formula KMnO4 and is a salt consisting of K+ and MnO-4 ions.   If you are interested in more chemistry videos, just subscribe to our newsletter below! Email address: Leave this field empty ..read more

Simon Singh at Numberphile explains a mathematical formula exposed in a Futuram episode called the “Duh-Vinci Code” on season 6, episode 5. What does this mysterious roman methematical formula really mean? II^XI-(XXIII*LXXXIX) Mersenne Number To find the solution we actually have to look at Mersenne Prime Number. Mn = 2^n – 1 M(2) = 2^2 – 1 = 3 M(2) = 2^3 – 1 = 7 M(2) = 2^5 – 1 = 31 M(2) = 2^7 – 1 = 127 M(2) = 2^11 – 1 = 2047 What about the Mersenne Prime? If you take our initial formula: II^XI-(XXIII*LXXXIX) It translates to 2^11 – (23 x 89) = 2 ..read more

Mark Rober has again brought physics to a whole new level with this crazy experiment. Find out how to turn sand into a liquid hot tub. How does it work? By adding just the right amount of air in a process called fluidized bed.  What is fluidized bed? Fluidized air bed, the process by which Mark Rober has made this cool experiment, is basically a process similar to liquefaction where a bed of solid particles will behave as a fluid. This happens when fluid, like a gas or a liquid, is forced through the solid particles. In our case, the air (gas), goes through the sand and convert ..read more

There is a new biochemistry video from :QUANTUM-GRAMMAR-CHANNEL.. Make sure not to miss this one… enjoy! Tags: Watch Time: 1:18:34. This video was originally posted by :QUANTUM-GRAMMAR-CHANNEL. on March 10, 2019 7:15 pm Video: Channel: :QUANTUM-GRAMMAR-CHANNEL. Duration: 1:18:34 Description: :Georg: Merkl: Adenosine/guanosine triphosphate, chondriana, life-crystals, bio-chemistry, bio-physics, sumer. FDA told him to “put the genie back in the bottle”, few attempts on his life later, backstabbed by friends and family, he passed away. tags: Source The post New frontiers in molecular biol ..read more

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