Do lights in equal distance away from you have the same brightness? The intensity or brightness of light as a function of the distance from the light source follows an inverse square relationship. Notice that as the distance increases, the light must spread out over a larger surface and the surface brightness decreases in accordance […]
How low can you set thermostat in winter?
How low can you set thermostat in winter? Wondering what temperature to set your thermostat when you’re away during winter? According to the U.S. Department of Energy, “When leaving on vacation — usually more than three days — set your thermostat to 50-55 degrees Farenheit in the winter to prevent against freezing pipes.” When should […]
What is host name in computer?
What is host name in computer? In computer networking, a hostname (archaically nodename) is a label that is assigned to a device connected to a computer network and that is used to identify the device in various forms of electronic communication, such as the World Wide Web. In the latter form, a hostname is also […]
What lives in a marsh?
What lives in a marsh? Animals like mink, raccoons, opossums, muskrats, beavers, frogs, turtles and lots of species of birds and insects are common in marsh lands. Freshwater marshes can vary in size from very small to very large! The largest freshwater marsh in the United States is the Florida Everglades. What lives in a […]
How do I rebuild my immune system after antibiotics?
How do I rebuild my immune system after antibiotics? The Bottom Line Taking probiotics during and after a course of antibiotics can help reduce the risk of diarrhea and restore your gut microbiota to a healthy state. What’s more, eating high-fiber foods, fermented foods and prebiotic foods after taking antibiotics may also help reestablish a […]
Do exit signs need Braille?
Do exit signs need Braille? All exit doors must feature a tactile sign with raised characters and Braille lettering. However, it is allowable to have two separate signs: one visual and the other tactile. Do all exits need to be accessible? All entrances and all exterior ground-level exits shall be accessible in compliance with Section […]
What are the differences between series and parallel connection?
What are the differences between series and parallel connection? Difference between series and parallel circuit A circuit is said to be a series circuit when the flow of current is the same throughout all the components in the circuit. In a series circuit, all the components are arranged in a single line. In a parallel […]
How do you calculate light?
How do you calculate light? Determine the Needed Lumens A lumen is a unit measurement of light. To determine the needed lumens, you will need to multiply your room square footage by your room foot-candle requirement. For example, a 100 square foot living room, which needs 10-20 foot-candles, will need 1,000-2,000 lumens. How many lights […]
What is the major function of the respiratory system?
What is the major function of the respiratory system? Your respiratory system is the network of organs and tissues that help you breathe. This system helps your body absorb oxygen from the air so your organs can work. It also cleans waste gases, such as carbon dioxide, from your blood. How many organs are in […]