Category: Physics

Are high luminosity stars rare? The volume of space included within a distance of 5000 light-years, however, is enormous; so even though highly luminous stars are intrinsically rare, many of them are readily visible to our unaided eye. Does Chemo age your face? The study authors said a wide-ranging review of scientific evidence found that: […]

What does a circle around a weather station mean? A small circle is plotted on the map at the location where the weather measurements were made. The circle can be filled in to indicate the amount of cloud cover. Positions are reserved above and below the center circle for special symbols that represent different types […]

Are fault lines dangerous? Major active faults such as the Hayward Fault are associated with many hazards. The most obvious hazard is that of large earthquakes, which induce ground shaking over a large area that can cause heavy objects to fall and windows to shatter, and can cause structural damage to buildings and bridges. How […]

What periodic trend is most important for determining metal reactivity? Metallic and Non-metallic Character Within a compound, metal atoms have relatively low attraction for electrons, as indicated by their low electronegativities. By following the trend summary in the figure below, you can see that the most reactive metals would reside in the lower left portion […]

What happens if thrust is greater than drag? If thrust is greater than drag, the aircraft will speed up, and subsequently, if drag is greater than the thrust, you’ll slow down. Lift is the force that counteracts the weight of an object in order to keep it in the air. What are 4 things that […]

How do you convert C to F fast? If you find yourself needing to quickly convert Celsius to Fahrenheit, here is a simple trick you can use: multiply the temperature in degrees Celsius by 2, and then add 30 to get the (estimated) temperature in degrees Fahrenheit. How do you calculate C to F? To […]

Is it better to steam or boil dumplings? To boil dumplings, fill a large pot two-thirds of the way with water. Cover and bring to a boil over high heat. Steaming is a much faster method as you only need to bring a few cups of water to a boil instead of an entire pot. […]

What causes so much static electricity in my house? Static increases when the air gets cold and humidity drops. To stay warm in your home, you turn up the heat, further adding to a decrease in humidity and increasing static. Why do I get static shocks more than others? Secondly, you may be storing more […]

What are disadvantages of modeling? Disadvantages of modelling and simulation Mistakes may be made in the programming or rules of the simulation or model. The cost of a simulation model can be high. The cost of running several different simulations may be high. Time may be needed to make sense of the results. What are […]

What makes a boiling egg float? Eggs have an air cell that becomes larger as the egg ages and acts as a buoyancy aid. An egg can float in water when its air cell has enlarged sufficiently to keep it buoyant. A spoiled egg will have an unpleasant odor when you break open the shell, […]