Category: Engineering

Why is BOD measured for 5 days? The standard oxidation (or incubation) test period for BOD is 5 days at 20 degrees Celsius (°C) (BOD5). The BOD5 value has been used and reported for many applications, most commonly to indicate the effects of sewage and other organic wastes on dissolved oxygen in surface waters (see […]

How much glucose is in grapes? Grapes. A cup of these has about 23 grams sugar. That’s a lot for something that’s so easy to pop in your mouth. You might eat them more slowly if you slice them in half and freeze them. What percentage of a grape is sugar? By the time of […]

What is the biggest dog alive today? The current Guinness title holder for tallest dog is Freddy, a Dane who measures 40.75 inches tall and resides in Leigh-on-Sea, Essex, England. In addition to a robust diet of minced beef (two pounds daily), casserole steak, and liver, Freddy has a tendency to eat sofas. Did the […]

How long is the Nile Delta? about 4,132 miles How long in miles is the river Nile? 4,132 mi Is it safe to swim in the Nile at Aswan? It’s with Nour El Nil and their one of their FAQ is “is it safe to swim in the Nile?” Their answer is “Yes, of course! Every […]

How many records did Green Day sell? 75 million records What was Green Day’s first song? Green Day’s first song, released under Lookout Records, was “1,000 Hours”. Recorded and released before any of the band members had even reached their 20s, the song has all the hallmarks of a Green Day track, including the unique […]

Why did the queen knight Elton John? Elton John was knighted by Queen Elizabeth II in 1998 for his incredible contributions to music and charity. In his deeply expansive career, Elton John has transformed music, sold hundreds of millions of albums, and given huge amounts of support to charities. Was Elton John knighted by the […]

What age is it safe to co sleep with baby? The safe way to co-sleep with your baby is to room share — where your baby sleeps in your bedroom, in her own crib, bassinet or playard. In fact, the AAP recommends room-sharing with your baby until she’s at least 6 months old, and possibly […]

What are the benefits of Star Apple? The star apple has many health benefits: Help to improve digestive health. They contain a good amount of fiber. High in Vitamin C. Helps control Diabetes. The fiber helps keep the blood sugar under control. Rich in antioxidants. Helps to prevent iron deficiency anemia. What are the benefits […]

What is the other name for El Castillo? El Castillo—in Spanish, “the castle”—looms at the center of Chichén Itzá, a 79-foot pyramid of stone. Also known as the Pyramid of Kukulkán, the structure embodies Mayan myth along with natural astronomical cycles. Which is better Chichen Itza or Tulum? Chichen Itza is not 4 hours each […]

Are harpsichords still made? The harpsichord was an important keyboard instrument in Europe from the 15th through the 18th centuries, and as revived in the 20th, is widely played today. What were harpsichords used for? The harpsichord was widely used in Renaissance and Baroque music, both as an accompaniment instrument and as a soloing instrument. […]