Which material is better to use for making a skate ramp? Wood is the best material for skateparks, because it flexes a little bit when something lands on it. So if someone crashes on it, the risk of injury is vastly reduced because the wood absorbs some of the impact. Is concrete good for skateboarding?…
Are Neanderthals more closely related to humans or denisovans?
Are Neanderthals more closely related to humans or denisovans? Scientists have identified the missing part of a finger bone fragment from the Denisova Cave in southern Siberia, revealing that Denisovans–an early human population discovered when the original fragment was genetically sequenced in 2010–had fingers indistinguishable from modern humans despite being more closely … Did humans…
How many atoms are in FCC unit cell?
How many atoms are in FCC unit cell? four atoms An FCC unit cell contains four atoms: one-eighth of an atom at each of the eight corners (8X18 = 18 X 18 = 1 atom from the corners) and one-half of an atom on each of the six faces (6 x 12 = 36 x…
Why are my steaks tough when I grill them?
Why are my steaks tough when I grill them? An undercooked steak will be a little tough since all the fat has not be converted into flavors and the juice has not started to flow, hence the steak is tough and chewy. An overcooked steak on the other hand, will be tougher and chewier since…
Why do they call it going cold turkey?
Why do they call it going cold turkey? “Cold turkey” is a quick-fix method to quitting tobacco, alcohol, or drugs. Rather than gradually tapering off the substance, you stop taking it immediately. The term comes from the goosebumps people sometimes get in the days after they quit, which look like the skin of a “cold…
Is Hardlight possible?
Is Hardlight possible? Solid light, often referred to in media as “hard light” or “hard-light”, is a hypothetical material, made of light in a solidified state. It has been theorized that this could exist, and experiments claim to have created solid photonic matter or molecules by inducing strong interaction between photons. Can photons carry matter?…
How does a BBO crystal work?
How does a BBO crystal work? BBO nonlinear crystal is a negative uniaxial crystal, which provides phase matching for various second-order interactions almost over its entire transparency range (from 185 nm to 3.3 µm, as deduced from the transmittance measurements using crystal samples of several mm thickness), making it a widely used crystal for ……
What if a Groupon merchant goes out of business?
What if a Groupon merchant goes out of business? Short answer: no. At least not according to the Groupon Promise, the company’s terms and conditions. According to the agreement, any unredeemed voucher may be returned within the first three days of purchase for a refund of the amount paid. How do you get your money…
What is the main difference between Aspergers and autism?
What is the main difference between Aspergers and autism? What distinguishes Asperger’s Disorder from classic autism are its less severe symptoms and the absence of language delays. Children with Asperger’s Disorder may be only mildly affected, and they frequently have good language and cognitive skills. Can you have mild aspergers? No two people with Asperger’s…
What are the chances of getting rabies from a bat scratch?
What are the chances of getting rabies from a bat scratch? An elderly woman died and more than two dozen people were treated for possible rabies exposure after her family failed to realize that a nighttime encounter with a bat put her at risk of rabies. Last August, the woman awoke in her Wyoming home…