Texas Tech University Humanities Discussion
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Learning Goal: I’m working on a humanities discussion question and need an explanation and answer to help me learn.
Question: Make sure you read the two posts below and make two separate post on these two comments, research their item and provide additional information.
Post 1: The invention that I will be talking about that came because of war time is RADAR. Although that the ideas of the radars were introduced before the WWII but according to the 7 Technological Innovations That Came out of World War II article the first radar navigation system did not appear until just before WWII. 7 Technological Innovations That Came out of World War II
Radars had a huge impact in winning world war two. It helped the US military with gathering information and it was used to deduct objects at a distance by using radio energy. It was first developed in the 1930s, by a German physicist called Heinrich Hertz. It was first able to use radio waves at a wavelength of 66cm. And then the first radars that were developed by the U.S. army had a frequency of 205 MHz). And in the early 1940s it was the next most notable microwave radars by the MIT Radiation Laboratory. It was a widely used gunfire control system, and it had a frequency range from 2.7 to 29 GHz. and had a parabolic reflector antenna with a diameter of nearly 6.6 feet (2 meters). And during the 1950s there was a radar that operated at 450 MHz. During the digital era the radar had significant advances. Now it has the ability to distinguish an object from another.
The technology of a radar is a form of energy that is everywhere such as radio waves, microwave, so it is almost impossible to harm any one.
According to (How Radar Works: The Technology Made Famous by War) article A radar has four main components:
Transmitter: The source of the radio pulse.
Antenna: Needed to send the pulse out into the ether and receive it when it is reflected back.
Switch: This tells the antenna when to transmit or receive the pulses.
Receiver: Required to detect and turn the pulses, which come back into a visual format to be read by an operator.
It was said that the radar won the war for the Allies in world war two. It was used to locate the dangerous objects before they could do any damage. By knowing where the aircrafts, ships are heading the U.S. military can prevent harm from happening.
We as a society today benefit from the radars to locate the storms and hurricanes. And we can learn about the weather and how high and low the temperature will be.
Reference
7 Technological Innovations That Came out of World War II. Interestingengineering.com, 10 July 2020, interestingengineering.com/7-technological-innovations-that-came-out-of-world-war-ii.
?(Radar during World War II – Engineering and Technology History Wiki)
How Radar Works: The Technology Made Famous by War. The News Motion, 10 Jan. 2022, thenewsmotion.com/how-radar-works-the-technology-made-famous-by-war/.
Radar – Advances during World War II | Britannica. Encyclopædia Britannica, 2020, www.britannica.com/technology/radar/Advances-durin…
Post 2: Microwaves have been progressing as a technology since about 1945. This is the year that a radar engineer named Percy Spencer was trying to find a new use for the radar technology that came about as a result of World War II. The short ranged radar technology used microwaves, which are a specific frequency of electromagnetic radiation. Percy Spencer noticed that while he was working on a radar, a candy bar in his pocket started to melt. This intrigued him, and he later attempted to do the same with popcorn, which popped, and an egg, which violently exploded. This was one of the first times that microwaves (the form of radiation, not the actual oven) were used to heat up food. Percy Spencer then created the first “microwave oven”, in the form of a metal box that he fed microwave radiation into. This is the point at which he realized that a smaller space that confined the microwaves would heat up food faster. Raytheon, the company he worked for, patented the microwave cooking method on October 8th of 1945.
Microwave ovens were not publicly available until much later on though. The first actual proper microwave oven was used in a restaurant to heat up hotdogs. This was to test the technology. Later on in 1947, the first microwave ovens became commercially available, but they were extremely expensive at the time. They cost around $5,000 dollars. Adjusted for inflation, that would be around $50,000 dollars today. It was massive, bulky, took up almost as much space as a fridge, and was only ever used in restaurants, hotels, and ships. This model was called a RadaRange.
It was made smaller and cheaper in 1954, but still cost around $2000-$3000, so it was still ridiculously pricey for the average consumer. A small side-note in the history of microwave use is its ability to revive frozen mice and rats. No, I’m not joking. In the 1950s, rats and mice were instantly frozen and then thawed out by scientists to research potential cryogenic stasis technology to prevent aging in humans. Originally, the rats and mice were thawed by burning them with an extremely hot spatula or spoon, which often killed the mice and rats or left them with severe burns. In 1956, a RadaRange microwave was altered to use a different frequency of microwave radiation, and thaw out the mice and rats without harming them. It worked, and seemed to have no noticeable side effects on the mice and rats. Unfortunately, the technology did not scale up, so freezing and thawing humans to prolong their life simply does not work, even with today’s technology.
Despite the miraculous ability to resurrect frozen mice, and heat up food, the asking price wasn’t particularly reasonable, even as late as 1965, when the price dropped down to $495. Finally, by the 1970s, a new safer model was created. From there, the price started to drop drastically, causing it to rapidly become as available as microwaves are today. Now, anyone can purchase a microwave for a reasonable price, and cook their food fairly evenly with it.
Works Cited
GOLDZVEIG, S A, and A U SMITH. A simple method for reanimating ice-cold rats and mice. The Journal of physiology vol. 132,2 (1956): 406-13. doi:10.1113/jphysiol.1956.sp005534
History of microwave oven. Microwave Oven History – Discovery of Microwave Ovens. (n.d.). Retrieved January 28, 2022, from http://www.historyofmicrowave.com/microwave-histor…
Additional info for your help: While you are welcome to disagree with peers, all responses must be appropriate, and grounded in sociological/technical examples. Responses must be a minimum of 250 words not including direct quotations. Also, you need to use in-text citations, as well. When responding to posts, some suggestions
include: Compliment (examples: I like how…)
Comment (examples: I agree that… I disagree that… I found it interesting that…)
Connection (examples: I also have thought about…)
Clarification (examples: I wonder why…)
