What is the Fitt for muscular strength and endurance? Adjusting frequency, intensity, time and type How can you test your muscular endurance? The pushup test is one of the best ways to assess upper-body endurance, explains Bell, especially in the muscles of the chest and shoulders. To do the pushup test, you’ll need a stopwatch […]
Can a mirror start a fire?
Can a mirror start a fire? The likelihood is very, very slim, however; you have the right kind of mirror, it actually can occur,” says Chief Solomon of the West Columbia Fire Department. He says concave mirrors can cause the fires. Can mirror set fire? It started after “sunlight on a mirror caused curtains to […]
What is the sound of a gun firing?
What is the sound of a gun firing? Gunfire characteristics A typical muzzle blast generates a shock wave with a sound pressure level (SPL) of 140 dB or louder. A whip-like “snap” or “crack” caused by the sonic boom that occurs as a projectile moves through the air at supersonic speeds. What sound does a […]
How is rock dated?
How is rock dated? To establish the age of a rock or a fossil, researchers use some type of clock to determine the date it was formed. Geologists commonly use radiometric dating methods, based on the natural radioactive decay of certain elements such as potassium and carbon, as reliable clocks to date ancient events. How […]
What are chances of seeing northern lights?
What are chances of seeing northern lights? Monitoring over many years the average chance of seeing the Northern Lights over a 4 night trip to Abisko is around 83%. What is the process that leads to the aurora borealis australis? This ethereal display – the aurora borealis or aurora australis, the northern or southern lights […]
Who flew too close to the sun?
Who flew too close to the sun? Icarus Who is the most famous female pilot? Amelia Earhart Who is first female pilot in the world? Sabiha Gökçen Who is the best female fighter pilot in the world? Top 10 Best Female Fighter Pilots in the world Niloofar Rahmani. She is the first female fixed-wing Air […]
Why is a shorter wavelength of light emitted when an electron falls from N 4 to N 1?
Why is a shorter wavelength of light emitted when an electron falls from N 4 to N 1? Therefore, from n=4 to n=1, higher energy is emitted, higher energy means higher frequency which means shorter wavelength. What is the shortest wavelength photon it can emit? The transition from the highest to the lowest energy levels […]
Does biodiesel damage your engine?
Does biodiesel damage your engine? Engine wear: short-term engine wear when using biodiesel has been measured to be less than that of petroleum diesel. While long-term tests have not been published, engines are expected to experience less wear in the long run when using biodiesel. Is biodiesel expensive to produce? With this feedstock cost, total […]