Difference between revisions of "482: Height"

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(Real Objects: Giraffe)
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*The tallest {{w|stilts}} recorded by the Guinness Book of World Records (as of November 2006) were 16.4 meters, or nearly 54 feet.
 
*The tallest {{w|stilts}} recorded by the Guinness Book of World Records (as of November 2006) were 16.4 meters, or nearly 54 feet.
 
*{{w|Brachiosaurus|Brachiosaur}} (sic) refers to a genus of dinosaur, Brachiosaurus.
 
*{{w|Brachiosaurus|Brachiosaur}} (sic) refers to a genus of dinosaur, Brachiosaurus.
*{{w|Giraffe}}
+
*The {{w|Giraffe}} is the tallest living terrestrial animal, with fully grown adults reaching in excess of 5m. While labelled 8m in the comic, the [http://www.big-animals.com/the-giraffe-the-worlds-tallest-animal/ record] for height is reported at 5.8m.
 
*{{w|Human height|Folks}} vary in height due to a large number of factors, but an extremely rough average range is given below:
 
*{{w|Human height|Folks}} vary in height due to a large number of factors, but an extremely rough average range is given below:
 
**Males: 165cm - 180cm
 
**Males: 165cm - 180cm

Revision as of 12:48, 5 September 2014

Height
↓ Skip to explanation ↓
Interestingly, on a true vertical log plot, I think the Eiffel Tower's sides would really be straight lines.
Title text: Interestingly, on a true vertical log plot, I think the Eiffel Tower's sides would really be straight lines.

Explanation

Ambox notice.png This explanation may be incomplete or incorrect: A number of the real items are lacking descriptions.
If you can address this issue, please edit the page! Thanks.

The comic is a companion piece to 485: Depth, which explores a logarithmic scale from Earth's atmosphere down to the interior of a single proton. Height begins this process by viewing logarithmically smaller scales showing several objects in the universe, both real and fictional, from farthest (top) to closest (bottom). The comic starts with Black Hat throwing a cat off the edge of the universe, probably a reference to Schrodinger's cat (as since it is outside the observable universe (for us), it exists in a super-position of both living and dead until we actually 'observe' it and force it to be in one of the states). It may also refer to the common myth that a cat will always land on its feet, a myth Black Hat appears to be testing to the extreme. The top of the universe is shown as the distance from which the oldest rays of light reach Earth.

Displaying height logarithmically while displaying width linearly noticeably distorts the shapes of the terrestrial objects. The title text notes that this distortion would approximately cancel out the curve of the Eiffel Tower's profile, and speculates that the cancellation might in fact be exact enough to convert its silhouette to a straight-edged triangle.

The age of the universe is currently stated as 13.8 billion years. But the Observable universe is about 14.0 billion parsecs or 46 billion light years, as shown on the top of the image.

Fictional Objects

  • Black Hat throwing a cat off the top of the comic, presumably to determine whether it will land on its feet.
  • Cat on a keyboard in space.
  • Ford Prefect, character from The Hitchhiker's Guide to the Galaxy, shown near his home star; Betelgeuse.
  • The Romulan Neutral Zone, marking the edge of the Star Trek Federation.
  • Federation Sector 0-0-1, the sector of space assigned to Earth in Star Trek.
  • "missing WMDs", a reference to the controversy about Iraq and weapons of mass destruction.
  • Bupkis is Yiddish for "nothing". Only a handful of objects are known to orbit between the outer edge of the Kuiper Belt and the inner edge of the Oort Cloud, hence "Bupkis".
  • A comet scheduled to hit earth in 2063, to coincide with the latest date for a supposed Biblically prophesized end of the world.
  • Life on the moons of Jupiter and Saturn, which may or may not exist.
    • The arrows most likely points to the following moons:
    • Jupiter's moon Europa which may be covered by a deep ocean of water - which is again covered by layer of ice many kilometers thick. In such an ocean life could have formed.
    • Saturn's moon Titan is the only known moon to have an atmosphere - although nothing like the one on earth. There may be oceans on the moon, but not filled with water but with liquid methane and ethane. It is way too cold for liquid water. Still in such oceans life could also have formed.
    • For either moon the oceans cannot be viewed from earth either due to thick ice or opaque atmosphere.
  • The little spaceship from Asteroids (video game).
  • The Discovery One from 2001: A Space Odyssey, referring to the quote "open the pod bay door, HAL."
  • The spaceplane is most likely the Planet Express from Futurama, where Fry once discussed "a big heaping bowl of salt." However, it could conceivably refer to these instead:
  • A Space elevator is a proposed method of transporting cargo or people into orbit, consisting of a large mass beyond geosynchronous orbit, a station at the geosynchronous point, a cable connecting it to the Earth, and a climber that can scale the cable. No space elevator has been built to date, but according to the comic, one will be deployed "one of these days, promise!"
  • Snoop Dogg, a rapper notorious for smoking marijuana, is shown as having the second-highest altitude record, a reference to slang for ingesting marijuana being "getting high". Someone who has ingested marijuana may also be described as "high".
  • A lunar lander with someone inside proclaiming "In retrospect, they shouldn't have sent a poet. I have no idea how to land". The goal of Lunar Lander (arcade game) is to land the vehicle without crashing it. The quote is a reference to Contact (1997 film) where the main character Ellie Arroway after witnessing a celestial light show up close says "Poetry! They should've sent a poet.". The actual vehicle in the movie was round and not shaped like a lunar lander.
  • Cory Doctorow's balloon. (first referenced in 239: Blagofaire.)
  • Cueball, who is apparently still using Python as shown in comic 353: Python.
  • The person in the tree saying, "Hey, squirrels!" is a reference to 167: Nihilism.

Real Objects

  • Hubble Deep Field, a long-exposure photograph of extremely distant galaxies.
  • Great Attractor, an unusual concentration of intergalactic mass.
  • Antennae Galaxies, a pair of colliding galaxies.
  • Andromeda Galaxy, a sibling to our Milky Way.
  • Magellanic Clouds, a pair of nearby dwarf galaxies.
  • Edge of Galaxy
  • Galactic Center
  • Crab Nebula, Orion Nebula, and Horsehead Nebula, supernova remnants.
  • Pleiades, Rigel, and Betelgeuse, stars. The Pleiades also have a derogatory remark, as per 66: Abusive Astronomy
  • The distance that human radio transmissions have traveled so far. See Contact (1997 film) for a depiction of this. This is also referenced in 1212: Interstellar Memes.
  • Pollux, Arcturus, Sirius, Alpha Centauri, and Barnard's Star, nearby stars.
  • Oort cloud, a halo of ice balls surrounding our solar system, but missing the Kupier belt between Neptune and the Oort cloud.
  • Pioneer 10 and Voyager 1, two early probes headed out of the solar system.
  • Eris and Pluto, a pair of TNOs now classified as dwarf planets. The "All hail Discordia!" after Eris is a reference to Discordianism, a somewhat tongue-in-cheek religion based around the goddess Eris.
  • Neptune, Uranus, Saturn, and Jupiter, giant gas planets at our solar system.
  • The Asteroid belt between Mars and Jupiter.
  • Mars, Venus, and Mercury, our neighboring inner planets. Note that Venus and Mars are shown with looping paths, reflecting the fact that their distances from Earth vary as the planets move in their orbits (this is true for all planets, but more noticeable for these two because the ratio of smallest to greatest distance is particularly large).
  • The Sun is the star at the centre of our solar system, around which the Earth orbits at an average distance of 149,600,000km.
  • Human Altitude Record, achieved by the team of Apollo 13, at 400,171 kilometres from earth. Due to using a free-return trajectory Apollo 13 used an orbital altitude approximately 100km higher than the remaining Apollo missions.
  • The Moon is the Earth's only natural satellite, and orbits at an average distance of 384,400km.
  • Geosynchronous Orbit is a type of orbit around the earth such that the satellites orbital period matches the earth's rotational period. The orbital radius of geosynchronous orbits is 42,164 km.
  • GPS Satellites are used for global positioning, and orbit at an altitude of approximately 20,200 km.
  • Space Junk is the large quantity of defunct objects in orbit around the earth. Amongst other things, this includes old satellites, rocket stages and fragments from collisions or disintegration. This graph and this graph put the majority of space debris at around 800 - 1100km. Space junk is also referenced in 1242: Scary Names under the title Kessler syndrome
  • International Space Station
  • The official edge of space is designated by the Kármán line which lies at an altitude of 100km above sea level. The line is named after Theodore von Kármán, and is recognised by the Fédération Aéronautique Internationale, an international standard setting and record-keeping body for aeronautics and astronautics.
  • Meteors
  • High-altitude balloons are unmanned balloons, typically filled with helium or hydrogen, which ascend to altitudes of 18-37km. The current altitude record was set in 2002 by a balloon named BU60-1 which reached 53,000m.
  • A typical airliners cruise altitude is around 12,000m (~40,000ft).
  • Mount Everest is the worlds highest mountain at 8,848m.
  • The Space Shuttle Columbia and its seven crew were lost when it disintegrated at approximately 63,400m in the 2003 Space Shuttle Columbia disaster.
  • Helicopter labelled at 6000m. Though the record for helicopter altitude (without payload) is 12,442m, normal flying is usually performed much lower. In the US, 6000m is into Class A airspace, which is restricted and requires flight under Instrument Flight Rules.
  • Clouds, though not actually labelled there are a couple clouds shown at roughly 6000m. While different cloud types vary in height, 6000m is roughly in the middle of the height range for clouds in temperate regions [1]
  • The Burj Khalifa, formerly known as the Burj Dubai, is the tallest building in the world.
  • The Eiffel Tower is a famous landmark in Paris, France.
  • Kite string is commonly sold in large spools; a nice thick spool will probably hold 500 feet, or 150 meters.
  • The Great Pyramid of Giza is one of the Seven Wonders of the Ancient World. It is located in Egypt.
  • A "pop fly" refers to Baseball. Specifically, it's when the batter hits the baseball, but the baseball follows a tall arc deep into the infield where it's easy picking for the other team to catch on its way down. The highest recorded pop fly, not including those that landed in foul territory, was 172 meters.
  • Redwood trees (Sequoioideae) are famous for being the tallest trees in the world. At 115.61m (379.3ft) Hyperion, a Coast Redwood, holds the record for the tallest tree in the world.
  • Oak
  • The tallest stilts recorded by the Guinness Book of World Records (as of November 2006) were 16.4 meters, or nearly 54 feet.
  • Brachiosaur (sic) refers to a genus of dinosaur, Brachiosaurus.
  • The Giraffe is the tallest living terrestrial animal, with fully grown adults reaching in excess of 5m. While labelled 8m in the comic, the record for height is reported at 5.8m.
  • Folks vary in height due to a large number of factors, but an extremely rough average range is given below:
    • Males: 165cm - 180cm
    • Females: 155cm - 165cm

Transcript

[Map of the universe from observable universe to Earth. Each area of item is labelled.]
[Labels left to right, up to down:]
[Black Hat is standing on top, throwing a black kitty down.]
Black Cat: mrowl!
Top of Observable Universe
46 Billion Light Years Up
Hubble Deep Field Objects
-One Billion Light Years-
Great Attractor
Antennae Galaxies (Colliding)
Andromeda
Holy Crap Lots of Space
-One Million Light Years-
Magellanic Clouds
Edge of Galaxy
Galactic Center
Crab Nebula
Orion Nebula
Horsehead Nebula
Romulan Neutral Zone
The PLEIADES, Duh.
Rigel
Betelgeuse
Ford Prefect
-Expanding Shell of Radio Transmissions [Arrows are pointing up.]-
Edge of Federation Sector 0-0-1
Pollux
Arcturus
Missing WMDs
Alpha Centauri
Sirius
Barnard's Star
-One Parsec-
-One Light Year-
Oort Cloud (?)
Bupkis
Comet which will destroy Earth in late 2063
Pioneer 10
Eris (All hail Discordia!)
Voyager I
Pluto (Not a planet. Neener neener.)
Neptune
Uranus
Saturn
Asteroids
<~life~>
Jupiter
Venus
Mars
Sun
Mercury
Aircraft: Hey a heaping bowl of salt!
"Open the fridge door, Hal."
Moon
Human Altitude Record (Apollo 13)
2nd Place: Snoop Dogg
Space Elevator - One of these days, promise!
-Geosynchronous Orbit-
GPS Satellites
Lunar lander: In retrospect, they shouldn't have sent a poet. I have no idea how to land
International Space Station
Space Junk
-Official Edge of Space (100 km)-
Meteors
-1/10 ATM-
High Altitude Balloons
Airliners
-1/2 ATM-
Cory Doctrow
Shuttle Columbia Lost
Everest
Helicoptors
Cueball: Woo Python!
[vertical scale along right side of image, starting at 1 km and getting progressivly smaller and smaller.]
-800 m-
Burj Dubai (~800 m)
Eiffel Tower (325 m)
Kites
Great Pyramid (140 m)
Redwood (115 m)
Pop Fly
Oak (20 m)
"Hey Squirrels!"
Tallest Stilts
Brachiosaur (13 m)
Giraffe (8 m)
[Megan and Cueball.] Folks
The Observable Universe, from Top to Bottom ~On a log scale~
Sizes are not to scale, but heights above the Earth's surface are accurate on a log scale (that is, each step up is double the height.)


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Discussion

Are you sure it reads "missing winds"? It looks like "missing WMDs" to me, which would suggest a political reference to the US engagement of 2003 in Iraq. 109.40.138.109 02:48, 22 May 2013 (UTC)

Yeah. Agreed. Changed. PinkAmpersand (talk) 11:23, 23 May 2013 (UTC)
"The comic starts with Black Hat throwing a cat off the edge of the universe, probably a reference to Schrodinger's cat" 
Has the editor here never heard of the "cats always land on their feet" myth? Black Hat would appear to be testing this from the extreme. Anonymous 01:43, 4 December 2013 (UTC) (and yes, that would be WMDs)
If I am not mistaken, this is a wiki; there is no set editor. If you have a suggestion for how to improve a page, it would be apt to edit it yourself. The discussion tends to be a forum for matters that may be tangentially related to the comic, or uncertain suggestions for improving the article. Davidy²²[talk] 03:18, 4 December 2013 (UTC)
Sorry, I wasn't aware of the proper terminology. I'll add my line shortly. Anonymous 05:13, 13 December 2013 (UTC)

Why is there a "(?)" in "Oort Cloud"? 108.162.212.196 02:10, 15 December 2013 (UTC)

Because it's not known if this cloud really does exist. Many objects are assumed to be there at that vast distance to the sun, but that distance is also the reason they could not be detected from earth. Voyager 1, the farthest humanmade object from Earth, will reach that region in many thousand years. --Dgbrt (talk) 21:37, 15 December 2013 (UTC)
I think this is a very important point, and have added this to the Objects table entry for Oort cloud. Redbelly98 (talk) 20:21, 21 July 2018 (UTC)

Why is Snoop Dogg in space? 108.162.219.223 (talk) (please sign your comments with ~~~~)

Because he's high as shit, man--he's so high, he's the second-furthest any person's ever been from the earth. 108.162.216.76 10:12, 6 February 2014 (UTC)
Diameter of milky way: 100 - 120 kly (Lets call it 110 kly)
Suns distance to galactic centre: 27.2 kly
Distance to edge of galaxy: (0.5*110)-27.2 = 27.8 kly = 263E18

Is my understanding and maths right? --Pudder (talk) 08:08, 11 September 2014 (UTC)
Conversion of pixels to height

Because it is a log graph for the y axis

heightfinal = heightinitial * factor
pixels = Logbase(height)

Using identities to show that a vertical distance on this graph represents a multiplicative change in true distance from the starting point of measure, and that a vertical change (delta) in the same number of pixels represents a corresponding multiplicative factor on total height.

pixelsfinal = Logbase(heightinitial * factor) = Logbase(initial) + Logbase(factor)
pixelsfinal - pixelsinitial = Logbase(factor) = pixelsdelta

Solving for the factor and the base of the log function

factor = basepixelsdelta
base = factor1/pixelsdelta

From the diagram it appears that a change (delta) of 550 pixels represents a change of x*1000000 therefore we can determine the base and determine the multiplicative factor for any change in pixels in the original drawing.

base = 10000001/550 
factor = (10000001/550)pixelsdelta = 1000000pixelsdelta/550

Therefore:

heightfinal = heightinitial * 1000000pixelsdelta/550
The above can be used as an equation to estimate and validate the heights on the diagram, where heightinitial is the height of the reference point in meters, pixelsdelta is the vertical change in pixels on the diagram, and is positive if height increases and negative if height decreases.

108.162.216.149 12:40, 30 September 2014 (UTC)

We just need to be careful that the existing heights (which in most cases have been fairly thoroughly researched) are not replaced by heights determined by their 'pixel position'. --Pudder (talk) 11:16, 1 October 2014 (UTC)
Wrong, the explanation is intended to explain the comic not the real world. Before you get excited though let me explain, we may be on the same page.
Many height values can be determined from external research, and can be shown to be consistent with the graph (e.g. center of the galaxy). In these cases the researched number should be used in the height column, as clearly these numbers represent the authors intent.
There or other cases where the height is labeled. These should always be used as height, as these numbers represent the authors intent. If they are inconsistent with the scale of the graph this should be noted in the description.
There are other cases, such as where the space shuttle disintegrated, where we can research the numbers, but they are inconstant with the graph by more than an order of magnitude. Any large inconsistencies should be noted in the description, but in these cases the graph position, not the actual position should be in the height column, because this is the closest representation we can have to authors intent.

108.162.216.106 11:50, 1 October 2014 (UTC)

Completely agree with the basis that authors intent is priority, and with pretty much everything written above. What I was concerned about was the possibility of someone indiscriminately changing existing height values based solely on its pixel position, with no cross-checking against the real world height. I would venture that the heights of the real items on the graph are intended by Randall to be at their correct positions, but there may be exceptions. I have a personal bias here, in that I spent quite considerable time doing research on many of the heights. That said, I don't in any way expect the height entries I worked on to be taken as correct, simply that there is some degree of reasoning behind the existing heights, and to change them without checking any discrepancies would be reckless. --Pudder (talk) 12:48, 1 October 2014 (UTC)
The Bodes Law ratio of one planet to the next but one is:
Pi^(9/4Pi): 20Pi^(3/2Pi)
thus rendering:
  • Mercury : Mars
  • Venus: Jupiter
  • Earth : Saturn
  • Mars : Uranus
  • Asteroids : Neptune

Not that the inner asteroids appear between Mars and Jupiter on the right hand column.

I used Google News BEFORE it was clickbait (talk) 01:09, 31 January 2015 (UTC)

I think the "pulsar" at the top right might actually be a quasar (an active galaxy). They certainly are distant objects, so someone more versed with the wiki may want to have a look. 141.101.99.123 20:10, 14 April 2015 (UTC)

108.162.229.129 15:00, 18 August 2015 (UTC)

Randall is stating that this is the longest distance that a ray of light has ever traveled to reach Earth, which implies that the universe is about 46 billion years old

Never hear of the expanding space? 108.162.229.129 15:00, 18 August 2015 (UTC)