The US Geological Survey estimates that 130 thousand earthquakes of magnitude 3.0-3.9 occur worldwide each year.Įarthquakes below this magnitude pass by largely unnoticed by most people (or tweeters). The US Geological Survey estimates that 1.3 million earthquakes of magnitude 2.0-2.9 occur worldwide each year. The USGS does report them, but the link provided was produced at the time this description was written. These are continually happening, and not felt by humans. This, together with "My turn signal blinks", forms a reference to 165: Turn Signals. The turn signal of the car in front of me blinks This, together with "The turn signal of the car in front of me blinks", forms a reference to 165: Turn Signals. This does not account for the possibility of Rocket Golf. The latest available statistics from the US Fire Administration show that in 2011 there were roughly 1.39 million reported fires.Ī hole in one is a feat in golf in which the player hits the ball directly from the tee into the cup with one shot. This eurostat graph shows the birth rate in the EU, and if we assume that the majority of people experience their first 'real' kiss at around age 12-16, then the years 1998-2002 are of interest, where the birth rate is fairly stable at just over 5.5 million. Given that each person can only have their first kiss once, this statistic is tied to the EU birth rate. According to the International Organization of Motor Vehicle Manufacturers, this total is just under 29.4 million cars in 2013.Ī European Union resident has their first kiss This relates to car manufacture in countries other than those four listed above. This is just a joke there are no reliable statistics on worldwide vibrator productions or sales.Īccording to the International Organization of Motor Vehicle Manufacturers, China is the world's most prolific car manufacturer, producing just over 18 million cars in 2013.Īccording to the International Organization of Motor Vehicle Manufacturers, Japan is the second most prolific car manufacturing country, producing just over 8 million cars in 2013.Īccording to the International Organization of Motor Vehicle Manufacturers, Germany is the third most prolific car manufacturing country, producing nearly 5.5 million cars in 2013.Īccording to the International Organization of Motor Vehicle Manufacturers, the US is the fourth most prolific car manufacturing country, producing just under 4.4 million cars in 2013. A table recording the time between completion of each block of 10 million edits can be found here, which suggests that the value 0.67 Sec/Edit is a little high, with the average being closer to 0.63 Sec/Edit. Wikipedia is an online, freely editable encyclopedia. The Mortality rate is much lower than the birth rate shown above thus, the world's population continues to increase. The typical resting heart rate in adults is 60–80 beats per minute (bpm). Some events make reference to other comics.Įxplanation and/or references to other comics. The table below lists all the events and their periods/frequencies (computed from the GIF loop times). The title text jokes that Randall tried to include a tile that flashes about once every ten years, but the tiles are all animated GIFs and while the file format supports animations of any length, the resulting file would be too big (at least 10 megabytes).Ī thorough analysis of the frequencies present in this comic and how they relate to the underlying technology (the GIF format) was published as Reverse Engineering xkcd's 'Frequency'. At room temperature, tar pitch flows at a very slow rate, taking several years to form a single drop. The title text refers to the Pitch drop experiment which measures the flow of a piece of pitch over many years. Therefore, the tile "One birth" blinks about 4 times per second. Each of the events flashes with its average frequency.įor example, statistically a child is born somewhere on the world approximately every 0.24 seconds, or four times per second. This comic shows a number of common events, arranged in a grid. I wanted to include the pitch drop experiment, but it turns out the gif format has some issues with decade-long loops. Title text: This comic shows estimated average frequency.
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