This is not really a Fun FAct of the Day, but more of a Quiz:<\/p>\n
<\/p>\n
I received\u00a0one of my Alumni magazines,\u00a0I won’t mention the University but I will say it’s across the Alabama line, the colors are Orange and Blue and they say “War Eagle’, and in the magazine, it has a take on the\u00a0TV Show “Are You Smarter than a 5th Grader”.\u00a0 The title of the section in the magazine is “Are you smarter than a freshman?”.\u00a0 One of the questions was:<\/p>\n
QUESTION:<\/p>\n
You are working for a humanitarian organization in a tropical, developing-world country.\u00a0 Your task is to help a community develop a water storage structure to take advantage of seasonal rains through rainwater harvesting for storage and subsequent use in food production.<\/p>\n
How will you estimate the flow rate of the small stream that will supply water to the planned storage reservoir?\u00a0 You do not have any tools other than your watch, the ubiquitous machete and the natural resources around you.<\/p>\n
<\/p>\n
SOLUTION:<\/p>\n
First, select a section of flowing stream that is fairly uniform in depth and width.\u00a0 Then, use your machete to cut some sticks and\/or vines to use for measuring distances and depths.\u00a0 Estimate the length of the sticks or the vines.\u00a0 For the vines, you will need to tie a stone on one end.<\/p>\n
Now, estimate both the depth and width of the water using sticks and vines.\u00a0 Use these measurements to calculate the cross-sectional area of the flowing stream.<\/p>\n
Once you have an estimate of the cross-sectional area, drop one or two floatable fruits such as orange or grapefruit into an upstream station \u2018A\u2019 of known distance to a downstream station \u2018B\u2019 (you can measure the distance with your vines or sticks). Using your watch (or by counting by 1000, 1001, 1002, etc.) determine the time it takes the float to travel downstream over the known distance between points A and B.\u00a0 Then, calculate the velocity using the travel time and distance between points A and B.<\/p>\n
Multiply the velocity by the previously determined average cross-sectional area in the general flow equation Q = V x A to determine the flow rate of the stream.<\/p>\n
Now you know the approximate flow rate of water in the stream (at least at this point in time).\u00a0 You can use this flow rate to help you plan for projected uses and ultimately the optimum size of the storage structure.<\/p>\n
<\/p>\n","protected":false},"excerpt":{"rendered":"
Are you smarter than a freshman?\u00a0 See if you know how to calculate the flow of a stream in the Question provided.<\/p>\n","protected":false},"author":145,"featured_media":507,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[10,4,5,6,50],"tags":[],"class_list":["post-799","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-anr-water","category-general-water-issues","category-stormwater","category-conservation","category-water-quality-quantity"],"_links":{"self":[{"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/posts\/799","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/users\/145"}],"replies":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/comments?post=799"}],"version-history":[{"count":4,"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/posts\/799\/revisions"}],"predecessor-version":[{"id":856,"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/posts\/799\/revisions\/856"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/media\/507"}],"wp:attachment":[{"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/media?parent=799"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/categories?post=799"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/site.extension.uga.edu\/water\/wp-json\/wp\/v2\/tags?post=799"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}