Is a snow hurricane possible? Since that time, there has been only one other confirmed snowfall event as a result of a tropical cyclone while still considered to be tropical, which was caused by Hurricane Ginny in 1963, generating accumulations of 13 in (33 cm) in Maine. Has there ever been an ice hurricane? In […]
What can be found in the thermosphere?
What can be found in the thermosphere? In the upper thermosphere, atomic oxygen (O), atomic nitrogen (N), and helium (He) are the main components of air. Much of the X-ray and UV radiation from the Sun is absorbed in the thermosphere. When the Sun is very active and emitting more high energy radiation, the thermosphere […]
Is there gravity underwater?
Is there gravity underwater? There is plenty of gravity underwater. That gravity is just offset by buoyancy, which is caused by the pressure in the column underneath a submerged object being greater than the pressure in the column above that object, resulting in net upward force on the object that mostly (but not completely) balances […]
Why is there no screaming on roller coasters?
Why is there no screaming on roller coasters? No screaming on roller coasters? Not exactly. As California counties continue reopening business sectors in the wake of falling case numbers, the state’s Attractions and Parks Association recommended that park officials “mitigate the effects of shouting” on rides. Can you scream in California? The bad news is […]
What levers are in the human body?
What levers are in the human body? Biomechanics: Lever Systems in the Body The gastrocnemius muscle. The greater the ratio of the effort arm to the load arm, the more efficient the lever system is (i.e. the easier it is to move the load). The atlanto-occipital joint as a first class lever. The elbow joint […]
What are the negative social impacts?
What are the negative social impacts? These negative social impacts include; social change; changing values; increased crime and gambling; changes in moral behaviour; changes in family structure and roles; problems with the tourist-host relationship and the destruction of heritage. What are the negative effects of tourism and hospitality in the economy? Increasing demand for basic […]
What light Cannot cause skin cancer?
What light Cannot cause skin cancer? Most skin cancers are caused by exposure to ultraviolet (UV) light. When you don’t protect your skin, UV rays from sunlight or tanning beds can damage your skin’s DNA. When the DNA is altered, it can’t properly control skin cell growth, leading to cancer. Can UV LED lights cause […]
Can tension ever zero?
Can tension ever zero? Zero tension is slack. A string or rope is often idealized as one dimension, having length but being massless with zero cross section. Does negative stress mean compression? Compressive stress has stress units (force per unit area), usually with negative values to indicate the compaction. Compressive stress is defined in the […]
How do athletes get energy?
How do athletes get energy? Carbohydrates or “carbs” (found in pasta, bread, cereal, rice, grains, potatoes, fruit, vegetables, milk, yogurt, etc.) are especially important for athletes because they supply the body with glucose for energy. Extra glucose is stored in the muscles and liver as glycogen, your energy reserve. How do I get energy to […]
What is the biggest challenge facing farmers over the next decade?
What is the biggest challenge facing farmers over the next decade? The following five challenges to the future of agriculture and food security exist on almost every continent in one form or another: constraints on resources from fossil fuel to water to phosphorus; land management problems resulting from tillage to monoculture to improper grazing practices; […]