Can you use PEX for underground water line? In slab and underground Some plumbing contractors may be surprised to know that PEX is approved for use in underground as well as in-slab applications. What type of PEX is best for underground? Although an unbroken line of PEX would be ideal, dezincification-resistant brass PEX fittings or […]
How do we measure the depth of the sea?
How do we measure the depth of the sea? The depth of the ocean is calculated by knowing how fast sound travels in the water (approximately 1,500 meters per second). This method of seafloor mapping is called echosounding. Echosounders can use different frequencies of sound to find out different things about the ocean. What’s the […]
How long can you live after radiation therapy?
How long can you live after radiation therapy? For most people, the cancer experience doesn’t end on the last day of radiation therapy. Radiation therapy usually does not have an immediate effect, and it could take days, weeks or months to see any change in the cancer. The cancer cells may then keep dying for […]
What will happen if we lose mangroves?
What will happen if we lose mangroves? Research shows that mangroves play a key role in carbon sequestration – removing about 1,000 tonnes of carbon per hectare – over thousands of years. The loss of mangroves contributes to nearly one-fifth of global emissions from deforestation. Climate change also affects their survival. How many mangroves are […]
How many times do pulsars spin?
How many times do pulsars spin? The fastest known millisecond pulsars can rotate more than 700 times per second. How do pulsars die? Since the light energy escapes, the production of the energy beam robs energy from the pulsar, so the pulsar’s rotation slows down (angular momentum does slowly decrease). Eventually, the pulsar dies away […]
How did the Welfare Reform Act of 1996 increase state power?
How did the Welfare Reform Act of 1996 increase state power? Welfare reform has undoubtedly greatly reduced reliance on welfare. Second, the Welfare Reform Act actually increased federal power over state welfare programs by requiring them to meet quotas or suffer severe financial penalties for failing to move enough welfare recipients off the rolls. What […]
What force pulls the moon and Earth together?
What force pulls the moon and Earth together? Gravity Is Gravity present on moon? The Moon’s surface gravity is about 1/6th as powerful or about 1.6 meters per second per second. The Moon’s surface gravity is weaker because it is far less massive than Earth. You do not have the same weight on Earth as […]
What is the difference between primary and secondary winding?
What is the difference between primary and secondary winding? The primary winding is the coil that draws power from the source. The secondary winding is the coil that delivers the energy at the transformed or changed voltage to the load. Usually, these two coils are subdivided into several coils in order to reduce the creation […]
What is the most important thing in graphic design?
How do you measure for built in bookshelves?
How do you measure for built in bookshelves? Measure the horizontal width of the wall space for the bookshelves. If the area is beside a window, door or other architectural feature, measure at the narrowest point, where the trim on the wall sticks farthest into the bookshelf space. What would you use to measure a […]