Who is known as the father of modern astronautics? For his ideas, careful research, and great vision, Tsiolkovsky has been called the Father of Modern Astronautics. Early in the 20th century, an American, Robert H. Goddard (1882-1945), conducted a variety of practical experiments in rocketry. When did Russia put a man in space? A Is […]
What was early Autotroph called?
What was early Autotroph called? Photoautotrophs What is an example of an Autotroph? Algae, along with plants and some bacteria and fungi, are autotrophs. Autotrophs are the producers in the food chain, meaning they create their own nutrients and energy. Kelp, like most autotrophs, creates energy through a process called photosynthesis. Why are humans referred […]
How do I make sure everyone has clean water?
How do I make sure everyone has clean water? 5 ways to improve water quality and access to water Improve sanitation facilities by providing toilets and latrines that flush into a sewer or safe enclosure. Promote good hygiene habits through education. Implement rainwater harvesting systems to collect and store rainwater for drinking or recharging underground […]
Can two persons have same voice?
Can two persons have same voice? Although some people might sound quite a bit alike, no two voices are ever exactly alike. We each have a unique voice because so many factors work together to produce that voice. The pitch of your voice is largely determined by the length and tension of your vocal cords. […]
How many red blood cells and white blood cells are in a single drop of blood?
What makes up 80% of air?
When 20.0 g of a substance are completely melted?
When 20.0 g of a substance are completely melted? When 20.0 grams of a substance is completely melted at its melting point, 820 Joules are absorbed. When a liquid is vaporized how much energy is gained? 20% Is heat released during evaporation? In the case of evaporation, the energy is absorbed by the substance, whereas […]
What are long waves?
What are long waves? Long waves, also called infragravity waves, have a wave period of 30 seconds to several minutes. Astronomical tides represent one important example of long waves. Long waves can occur in shallow water, such as the Chesapeake Bay. But long waves are not limited to what is normally considered shallow water. What […]
Which gun has the most recoil?
Which gun has the most recoil? 950 JDJ. This gun is no joke. It uses 240 grains of powder to push a 2,400-grain bullet 2,100 fps. It bites on both ends though, generating 277 foot-pounds of recoil, or approximately 10 times as much as a 30-06. What rifle kicks the hardest? Petzal: The Hardest Kicking […]