52 posts tagged with measurement.
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Why are woodworking measurements always in Imperial and not Metric?

My kid is taking Woodshop in high school and the class is taught in Imperial units in Canada. Why? Why are inches still the defacto measuring system for woodworking/home improvement? I'm old, so I have an excuse for buying 8' 2"x4"'s, kids don't. Plus wouldn't removing the fractions make it easier for everyone?
posted by Keith Talent on Apr 7, 2016 - 10 answers

How do Canadian cooks measure?

How do Canadian home cooks measure in the kitchen and at the grocery store, with respect to metric vs. imperial units? [more inside]
posted by andrewesque on Mar 16, 2016 - 34 answers

Exact Measurements of an IKEA Hemnes 3 drawer chest

I'm interested in buying a specific dresser at IKEA (Hemnes 3 drawer chest), but I am trying to fit it into a small nook and I need more specific measurements than they can give me. Would someone who has this dresser at home be willing to measure it for me? [more inside]
posted by bonheur on Jun 23, 2015 - 7 answers

Accuracy of Fitbit Aria below 9kg?

I need to find a wireless connected scale to measure objects, none of them very heavy. The scale needs to have an API with which to retrieve the weight readings. For various reasons, including system compatibility and short timescales, I'd prefer to use the Fitbit Aria if at all possible. However, it looks like the minimum weight for accurate readings is 9kg. Can anyone tell me anything about how accurate the Fitbit Aria is *in practice* for weighing items lighter than this?
posted by tel3path on Mar 21, 2015 - 10 answers

How do you measure a software engineer's productivity?

I’ve been told that my productivity at work needs to improve, and that I should think up three ways in which my manager can measure my productivity and its improvement. Difficulty level: software engineer. Wall of snowflakes inside (longer than expected, sorry folks!) [more inside]
posted by six sided sock on Oct 20, 2014 - 32 answers

How does door work?

I have to replace a screen/storm door, and when I measured it, it was 80" x 33 1/3". That's... not a normal size, is it? How do you buy a new screen/storm door when the size is so wonky? They seem to come in 32" and 34" widths, what should I do? [more inside]
posted by juniperesque on Sep 30, 2014 - 6 answers

Methods of approximation?

I've never been very good at either math or at eyeballing things like weight or dimension, but was thinking recently about how to more or less accurately weigh things without using a scale. What good methods are out there to approximate other kinds of measurements? [more inside]
posted by OverlappingElvis on Aug 12, 2014 - 11 answers

Lost time is never found again. - Franklin

If time (as measured on Earth) were speeding up or slowing down (relative to what it had been in the past) would there be any way for us to notice or measure it? [more inside]
posted by anastasiav on Apr 10, 2014 - 18 answers

How to frame a poster...

Is 31.5 inches by 23.5 inches a common frame size? [more inside]
posted by lewedswiver on Nov 15, 2013 - 5 answers

I'm dumb. How many cups of beans?

The recipe says "2 cups dried cannellini beans, soaked overnight". Does it mean 2 cups of the beans after soaking, or before soaking? [more inside]
posted by under_petticoat_rule on Nov 13, 2013 - 13 answers

I want to measure things! For science, and thrift!

I want to measure and test things in my life (home, car, etc.) for maximum efficiency, thrift, and measuration, which is a word I just made up to combine measurements and data wankery. What measurements can I make and what fun tools do I need to buy? [more inside]
posted by Admiral Haddock on Oct 23, 2013 - 20 answers

History Filter

Is there a statistical measure that I can rely on in evaluating papers or articles in a historical subject? If you teach history, what measure would you rely on in evaluating student papers and take-home exam essays for plagiarism? [more inside]
posted by bad grammar on Aug 14, 2013 - 2 answers

Web resources for real science data for use in kids' science classes?

I am a science teacher creating a professional development workshop for other science teachers. The topic is along the lines of "getting real scientific data and measurements from the web for your students to work with". The goal is to find "real" scientific data from the world beyond the classroom, that might make for more compelling classroom activities and investigations in high school and middle school science classes, such as biology/ecology, earth sciences, astronomy, physics, chemistry, etc. The data can be in the form of videos or images to be measured and analyzed, or raw numbers to crunch, or whatever. The data needs to be freely available on the web. Examples inside... [more inside]
posted by chr1sb0y on Jul 8, 2013 - 16 answers

measuring simple shaft vibration at a bearing

i am trying to measure the vibration of a bearing, which is at one end of a simple fan shaft. the fan is large but rotates at reasonably slow speed. fan diameter approx 3m, shaft speed approx 145 rpm, 2 dodge s2000 bearings. i am getting FFT data but when i look in the low frequency range the data is not meaningful. i am using sample rate 4096 Hz, block time 0.125 sec. 20 sec sample time and i think the acceleromter is set up correctly. where might i be falling over?
posted by edtut on Jan 29, 2013 - 11 answers

Fan fun

How do I, using common household tools and objects, determine the (variable) RPM of a fan? [more inside]
posted by itstheclamsname on Dec 24, 2012 - 17 answers

Unusual objects and their measurements

Please list your best, favorite, most interesting object that could be used as a unit of measure for one of the following: area, volume, or temperature. For your answer to be useful I require the object and its measure. The ideal object is unusual but relatable at the human scale. [more inside]
posted by safetyfork on Nov 19, 2012 - 37 answers

Sharp eyes, sharp eye exam?

Eyes 20/10 with correction, where to get the sharpest prescription in the US? [more inside]
posted by zippy on Sep 17, 2012 - 12 answers

Which group of athletes is more abnormal in height?

Which group of athletes is further from the center of the bell curve distribution for height: Olympic gymnasts or NBA players?
posted by Trurl on Jun 4, 2012 - 7 answers

Math is Fun

What are some ways to accurately measure the volume of very small amounts of liquid without complex equipment? [more inside]
posted by WhitenoisE on Feb 27, 2012 - 23 answers

What Are We Really Counting?

How do you measure how many calories are contained in food? [more inside]
posted by netbros on Jan 15, 2012 - 12 answers

Man is the measure of all things.

What is the philosophy of measurement? [more inside]
posted by StoneSpace on Nov 23, 2011 - 27 answers

What is the origin of the 20-80 scale used in baseball scouting?

What is the origin of the 20-80 scale used in baseball scouting? [more inside]
posted by sitecoach on Jun 30, 2011 - 4 answers

How do you estimate a cancer risk from radiation exposure?

How is the following risk assessment from this NYT infographic reached?: "The estimated increase in cancer risk of eating two unwashed pounds of [radioactive cesium-tainted broccoli] is about two chances in a million." Is it based on population studies, or sieverts, or something else? What biological effect do sieverts measure? [more inside]
posted by Nattie on Apr 3, 2011 - 4 answers

Physical fitness benchmarks?

What are canonical physical fitness benchmarks specific sports, occupations, and other activities? [more inside]
posted by asymptotic on Feb 5, 2011 - 14 answers

How subversive...

Why are dimensions in the art world listed height by width? W before H seems to be the standard everywhere else. [more inside]
posted by quosimosaur on Jan 18, 2011 - 4 answers

Rowing simulator: how to measure or build

Looking for a way to measure movement of simulated rowing. Thoughts/advice + possible engineering involved! [more inside]
posted by filmgeek on Oct 16, 2010 - 9 answers

I apparently can't do 6th grade science.

My daughter's science homework is driving me crazy. It's one of these crossword puzzle deals. She's filled the entire thing out save one answer, and as I'm 30 I'm somewhat shamed that I cannot seem to answer a 6th grade science question. Maybe you can help. [more inside]
posted by kbanas on Sep 29, 2010 - 6 answers

On the methods of phenomenology. How do you define, operationalize, measure "X"?

ScholarFilter: Does anyone know of a scholarly article that goes from defining a construct (say, for example an attitude of some kind) to operationalizing it to measuring it in a somewhat succinct way? I'm trying to understand this process better. [more inside]
posted by tybeet on May 16, 2010 - 10 answers


Give me some real-world benchmarks so I can understand the metric system. [more inside]
posted by l33tpolicywonk on Apr 21, 2010 - 43 answers

Sending cookbook abroad?

Sending an American cookbook to Europe: what do I need to include? [more inside]
posted by R a c h e l on Jan 31, 2010 - 15 answers

Measuring productivity

what kind of productivity do we know how to measure effectively, and what kind do we not? What are some examples of good measurements of the first kind, and what are some examples of failing to measure the second kind of productivity? What distinguishes these two kinds of productivity? What's a good Google query for this question? [more inside]
posted by d. z. wang on Jan 17, 2010 - 7 answers

How many grains of sand until we're there...?

Time&SpaceFilter: GoogleFu failing me here... Trying to RE-find specific time and amount measurement/approximation sites. [more inside]
posted by TigerMoth on Dec 15, 2009 - 4 answers

Highway measuring devices...maybe?

Question about highway....measuring devices? Not exactly sure. [more inside]
posted by brandman on Oct 9, 2009 - 11 answers

Tools That Make Other Tools

How did we go from basic rough hand tools to the point of having really precise tools? Specifically, how do you make a better tool from the ones you have on hand? [more inside]
posted by toomanyplugs on Aug 19, 2009 - 17 answers

How is acreage measured on non-flat terrain?

Surveying 101: How is acreage measured on hilly ground? Is the acre a measure of the surface area of the ground, or of the area inside an imaginary box that is superimposed over the ground? [more inside]
posted by Orinda on Aug 18, 2009 - 11 answers

Information Society

Is there an equivalent to free web metrics sites like Quantcast and Compete for the UK & Europe? [more inside]
posted by CRM114 on May 21, 2009 - 4 answers

Greenwich, Zulu & UTC: What's the difference?

What is the difference between Greenwich time, Zulu and UTC? Is Zulu and UTC a form of Greenwich time? I can't seem to find a page that states the difference. And do these forms of measurement not recognize daylight savings? Thanks in advance!
posted by cwarmy on Mar 18, 2009 - 8 answers

What software can make measurements in my pictures?

Is there any good free software for putting a coordinate system on an image and extracting positions of objects? [more inside]
posted by springload on Oct 12, 2008 - 4 answers

Measure sunlight in yard to determine new garden spot

Is there a way to measure how much sunlight different parts of my yard get over the course of a day? [more inside]
posted by stbalbach on Aug 23, 2008 - 14 answers

Keep those pinchers to yourself, mister.

Where in L.A. can I get my body fat measured by water immersion?
posted by mykescipark on Jul 11, 2008 - 3 answers

How many times do I need to weigh a given object to overcome the scale's inaccuracy?

If I have a scale that is accurate to .1 grams and I want it to be accurate to say, .05 grams, how many measurements do I need to take to do this? Can I even do this? [more inside]
posted by geoff. on Jun 18, 2008 - 22 answers

No time like the present

I'm interested in aspects of benchmarking with the help of UNIX's time, specifically, what user, system and elapsed times correspond to, within the functional context of the system and the tested application. [more inside]
posted by Blazecock Pileon on Mar 4, 2008 - 4 answers

Help Figuring Out this Stick Thing

I recall something that I believe I heard Carl Sagan say either in an episode of Cosmos or in one of his earlier books, that one could store enough information to hold an entire encyclopedia by putting a notch in a stick, if only one could measure where the notch lies to some absurd astronomically precise figure. Am I imagining this? [more inside]
posted by macinchik on Dec 6, 2007 - 14 answers

A Problem of Scale: Halfway in size between an atom and the universe

"A human is halfway in size between an atom and the known universe"... This is a paraphrased quote I have come across several times. I like it. Who said it first? How true is it in the most literal sense? And, finally, what errors arrive in postulating a universe, or an atom, which can be measured AT ALL from our singular, relativistic, perspective? [more inside]
posted by 0bvious on Feb 18, 2007 - 14 answers

Mead-making and measuring alcohol content

Measuring alcohol content without a hydrometer? [more inside]
posted by Blazecock Pileon on Jan 10, 2007 - 8 answers

My yard is not an option.

What are some common household objects that can be used as standard measures? [more inside]
posted by carsonb on Nov 20, 2006 - 37 answers

Is there a way to determine the THC content of my "Green Dragon" mixture?

I'm not a smoker, so I consume most of my THC by steeping 1/4 oz of weed in 26 oz of 151-proof rum. (After a week or so, I strain the rum and consume it about a tablespoon at a time. It suits my needs quite well.) I remember from my days of making homemade wine that there was a fairly easy way to estimate the alcohol content of wine by measuring the specific gravity before and after fermentation. Is there any similar method to get a ballpark idea of how much THC is in my rum?
posted by Tbola on Oct 20, 2006 - 11 answers

Which light best portrays an accurate depiction of the whiteness of your teeth?

What kind of light do you use to accurately measure how white your teeth are? [more inside]
posted by SeizeTheDay on Jul 20, 2006 - 9 answers

Are American cookbooks stupid?

Why do American cookbooks give ingredient measurements by volume and number instead of weight? [more inside]
posted by betterton on May 3, 2006 - 35 answers

measuring really long distances

Do we have any measurements that confirm redshift for distant objects? [more inside]
posted by rdr on Feb 17, 2006 - 10 answers

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