What is the theory of Robert Hooke? English physicist Robert Hooke is known for his discovery of the law of elasticity (Hooke’s law), for his first use of the word cell in the sense of a basic unit of organisms (describing the microscopic cavities in cork), and for his studies of microscopic fossils, which made […]
When did Shel Silverstein write the unicorn?
When did Shel Silverstein write the unicorn? 1962 Who recorded the unicorn song? The Irish Rovers Are any of the Irish Rovers still alive? Since then, Will Millar retired in 1995 and cousin Joe left the group ten years later; sadly, Jimmy Ferguson passed away suddenly in 1997. Still, the group — including both George […]
How many finches did the Grants study?
How many finches did the Grants study? The Grants numbered the bird 5110 and followed it and all its known descendants over seven generations. Many of its descendants stuck out from the other G. fortis on Daphne Major: they had unusually shaped beaks and their songs differed from those of the other finches. What did […]
Are all the thickness of the boundary layers same?
Are all the thickness of the boundary layers same? The thickness of the velocity boundary layer is normally defined as the distance from the solid body to the point at which the viscous flow velocity is 99% of the freestream velocity (the surface velocity of an inviscid flow). If the Prandtl number is 1, the […]
Does the force that holds the riders on the carnival ride act toward or away from the center?
What is the difference between cohesive and cohesionless soils?
What is the difference between cohesive and cohesionless soils? Texture differences in soils result from the types of rock that make up a particular area. So non-cohesive soil environments contain little to no clay or fine particles while cohesive soils contain high amounts of clay and fine particles. Are cohesive soil good for backfilling? The […]
How do we know the temperature of Earth?
How do we know the temperature of Earth? The mean surface temperature of the earth is around T=288K T = 288 K . What is the effective temperature of Earth? 252 K What is Earth’s blackbody temperature? -23°C How is Earth’s albedo calculated? The instruments use scanning radiometers to measure both the shortwave solar energy […]
What is the mythology of the West?
What is the mythology of the West? The frontier myth or myth of the West is one of the influential myths in American culture. The frontier is the concept of a place that exists at the edge of a civilization, particularly during a period of expansion. This period of time became romanticized and idealized in […]
What part of your body are you most likely to injure if you lift a load incorrectly?
What part of your body are you most likely to injure if you lift a load incorrectly? The back is particularly vulnerable to manual handling injuries. Safety suggestions include controlling risk factors in the workplace, in addition to personal controls: Lift and carry heavy loads correctly by keeping the load close to the body and […]