When was the first steam boiler invented? Not until the 17th century was serious consideration given to the potential of steam power for practical work. The first boiler with a safety valve was designed by Denis Papin of France in 1679; boilers were made and used in England by the turn of the 18th century. […]
Who were the Egyptian pharaohs?
Who were the Egyptian pharaohs? The Pharaohs of Ancient Egypt were the supreme leaders of the land. They were like kings or emperors. They ruled both upper and lower Egypt and were both the political and religious leader. The Pharaoh was often thought of as one of the gods. Who is the most famous pharaoh […]
What advice would you give to an underweight person?
What advice would you give to an underweight person? Eat five to six smaller meals during the day rather than two or three large meals. Choose nutrient-rich foods. As part of an overall healthy diet, choose whole-grain breads, pastas and cereals; fruits and vegetables; dairy products; lean protein sources; and nuts and seeds. Try smoothies […]
Why is the Challenger so important?
Why is the Challenger so important? Early shuttles took satellite equipment into space and carried out various scientific experiments. The Challenger disaster was the first major shuttle accident. As a result, NASA did not send astronauts into space for more than two years as it redesigned a number of features of the space shuttle. What […]
How many neutrons do elements have?
How many neutrons do elements have? For example, silicon has 14 protons and 14 neutrons. Its atomic number is 14 and its atomic mass is 28. The most common isotope of uranium has 92 protons and 146 neutrons. Its atomic number is 92 and its atomic mass is 238 (92 + 146)….2.1 Electrons, Protons, Neutrons, […]
Who is Mandy Moore married to?
Who is Mandy Moore married to? Taylor Goldsmithm. 2018 Ryan Adamsm. 2009–2016 Mandy Moore/Spouse It’s a boy for the “This Is Us” star and her musician hubby. Mandy Moore and her husband, Taylor Goldsmith, have welcomed their first child — a baby boy! How old is Mandy Moore right now? 37 years (April 10, 1984) Mandy […]
What is an example of historicism?
What is an example of historicism? The definition of historicism is the belief that history was determined by laws, and the belief that understanding people and cultures requires an understanding of their historical events. An example of historicism is the belief that what happened 100 years ago was meant to happen and shapes what is […]
Is noise an example of onomatopoeia?
Is noise an example of onomatopoeia? Common Examples of Onomatopoeia Machine noises—honk, beep, vroom, clang, zap, boing. Animal names—cuckoo, whip-poor-will, whooping crane, chickadee. Impact sounds—boom, crash, whack, thump, bang. What words are considered onomatopoeia? Onomatopoeia (also onomatopeia in American English), is the process of creating a word that phonetically imitates, resembles, or suggests the sound […]
Who won the format war?
Who won the format war? After two decades of fighting, Edison’s company began to manufacture the competing disc-based systems. Following four decades of failures and not-quite-successes, Sony finally dominated a format war. How the Blu-ray war was won? The format war’s resolution in favour of Blu-ray was primarily decided by two factors: shifting business alliances, […]
How do I know if my marbles are valuable?
How do I know if my marbles are valuable? The swirls are usually different colors and the more colors used for the swirls, the more valuable the marble is. Marbles that feature no spaces between the colors are the most prized as collectibles. How do I know if my vintage marbles are valuable? When it […]