Is DownTek real down? What is DownTek™ Water Repellent Down? DownTek™ is down that has been treated with a DWR (Durable Water Repellency) and renders the down hydrophobic. DownTek™ is currently available in either it’s original C6 formula, or the PFC-Free™ formula. Why is down a good insulator? Down feathers are great thermal insulators. The […]
Are the Great Lakes affected by tides?
Are the Great Lakes affected by tides? True tides—changes in water level caused by the gravitational forces of the sun and moon—do occur in a semi-diurnal (twice daily) pattern on the Great Lakes. Consequently, the Great Lakes are considered to be non-tidal. Water levels in the Great Lakes have long-term, annual, and short-term variations. Could […]
What is the formula of law of inertia?
What is the formula of law of inertia? Inertia of an object is the resistance offered by the object to change in its motion or position. Simply, it is the resistance that the object will apply to an external opposite force. Translational Inertia = ma, where “m” is the mass, and “a” is the acceleration […]
What is the fastest part of the body to heal?
What is the fastest part of the body to heal? cornea What is the purpose of the tongue? The tongue (L. lingua; G. glossa) functions as a digestive organ by facilitating the movement of food during mastication and assisting swallowing. Other important functions include speech and taste. What is the true meaning of speaking in […]
What are 4 major properties of a magnet?
What are 4 major properties of a magnet? They are: Attractive Property – Magnet attracts ferromagnetic materials like iron, cobalt, and nickel. Repulsive Properties – Like magnetic poles repel each other and unlike magnetic poles attract each other. Directive Property – A freely suspended magnet always points in a north-south direction. What is the main […]
What is the 3 principles of exercise?
What is the 3 principles of exercise? Just as the pros needed a refresher of football basics, the rest of us need to brush up on the basic principles of exercise, namely: specificity, overload, and progression. What are the three major principles of fitness? The best fitness training programs are built on three principles: overload, […]
Does propeller shape affect a paper helicopter speed?
Does propeller shape affect a paper helicopter speed? In this science experiment, kids make paper helicopters and explore the principles of flight. Simple explanation: Wind speed and wing shape affect how a helicopter flies. The only way helicopters and airplanes can fly is if the upward force of lift is greater than the downward force […]
Which type of energy transfer does not require matter?
Which type of energy transfer does not require matter? The transfer of thermal energy by conduction and convection does not require matter. 2. The transfer of thermal energy by radiation does not require matter. What would result in being able to dissolve a greater amount of gas in a solution? An increase in temperature decreases […]
What is the formula in finding the volume of a cone?
What is the difference between yellow and red bone marrow?
What is the difference between yellow and red bone marrow? Red and yellow bone marrow are the two types of bone marrow found inside the bones. Red bone marrow occurs in the spaces between trabeculae of spongy bones. Yellow bone marrow occurs in the marrow cavity of the long bones. Red bone marrow produces blood […]