Vacuum flask

There are many instances in today’s society and on this planet, where it is crucial to figure out the unknown concentration of a known substance. The process that is used to figure out the unknown concentration of a substance is the process known as titration. Titrations are used in a wide range of work environments including forensic labs, and pharmaceuticals. A way in which titrations could aide society could start in a forensic lab. It could be used when trying to figure out the…

16, 2014 repairing a damaged painting on canvas can be a trying experience. There are several repairs that you can do by yourself without having to consult an expert. You can bows in places on the canvas, repair small tears or holes and replacing broken stretcher strips without a lot of problems. 1 .Repair any bows in the canvas. A canvas can get bows in the fabric when it has been stored. If anything leans up against the canvas, it can push an impression into the fabric. This is the easiest…

Moldovan et al. propounded a different method of extraction from pharmaceutical tablets by extraction of with 0.5 M NaOH. Samples were then filtered and transferred to calibrated flasks with double quantity of distilled water [25]. Author selected five Daflon tablets (a mixture of micronized flavonoid glycosides consisting of 450 mg of diosmin and flavonoid extract equivalent to 50 mg of hesperidin) were powdered, and sonicated at 30°C with 90 mL of methanol/DMSO (1:1) for 30 min. A…

Personal Electronic Devices are a blessing and a curse to society. Some people believe that Personal Electronic Devices will spell the downfall of humanity as we know it and while I don’t personally agree with that statement I can see where people would come to that conclusion from. Personal electronic devices are more addicted to people in today’s society than any other addiction in human history. No other time in history has there been one sole thing that near every human has and uses…

challenge for computer engineers from the start was deciding how to transfer data through the computer. The first computer, the ENIAC, required 18,000 vacuum tubes to do so, and weighed about 20 tons. Because of its huge size, its power consumption was 150,000 watts (Piguet). Evidently, size and power consumption were major issues from the start. Vacuum tubes were a continuous source of difficulty due to expenses, and the fact that they were constantly burning out. Eventually, the invention of…

“Twenty two percent of teachers have access to the right level of technology in the classroom.” (PBS, 2011) In this research paper, I will look at technology and the effects on students and teachers; specifically, in a language arts classroom. The problem will be examined over time as technology has changed. In addition, how technology has been integrated into the classroom. There are many facets to technology use in the classroom. The first is how technology is use has changed over time.…

The Impact of Screen Time on Sleep As the Internet develops rapidly in today’s dynamic world, it is extremely hard to imagine how our lives would be without electronic devices. In 2014, an investigation from The National Sleep Foundation found that 89 percent of adults and 75 percent of children have at least one electronic device in their bedroom (Scutti). An child health survey in Australia conducted by the Royal Children’s Hospital Melbourne reveals that almost half of all children (43%) use…

In the article, Watching TV Makes You Smarter, Steven Johnson argues that many of the shows that our population considers unhealthy are actually relatively healthy for our brains. On the other hand, Dana Stevens argues in her essay, Thinking Outside The Idiot Box, that Steven Johnson’s thesis makes absolutely no sense and that television in no way gets our brains thinking or makes us smarter. Johnson starts by explaining what he calls the Sleeper Curve. He does this by comparing older TV shows…

1. List and describe 3 key points made in the video “The Story of Electronics.” • Designed for the dump – products are designed to be hard to repair, breaks easily, and difficult to upgrade. These items led to more devices going to the landfill since it is cheaper to replace them. • Product Takeback – Companies would be responsible for devices and products they produce including their disposal. This could lead to much better designs of the product and devices, which might last longer, have…

I. Have you ever spent too much time watching your favorite TV and lost sleep over it? A. You know you’re supposed to do your homework, but the TV programs have your favorite celebrities so you cannot stop watching them. B. According to the author Demitrios Kalogeropoulos, most recently accessed on December 3, a normal American’s average time of watching television is 4 hours per day. This may not seem like a long time, but it really adds up. C. Too much media may also affect in a…