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Things 49: Galaxy Rising, Tube Time Visualisation, Back Flip Variation

(Originally sent May 2009)

Video
Time lapse of the stars at night – be sure to watch to the end to see the Milky Way rising:

Galactic Center of Milky Way Rises over Texas Star Party from William Castleman on Vimeo.

Link
A simplistic but interesting data visualisation showing travel times from and to different parts of the tube network – this explains why everything in London seems to be about 30 minutes away:

Quote
In a self-consciously long and disappointingly poorly argued article titled “In Defence of Distraction“, the following quote made reading it all worthwhile:

“Priorities are like arms: If you have more than two of them, they’re probably make-believe” – Merlin Mann

Picture
An animated gif (2MB) showing a fantastic variation on a back flip.

Puzzle: Newspaper eyeball value
We often hear that newspapers are in terminal decline and it’s all the internet’s fault. But much of a newspaper’s revenue comes from advertising, and many have created their own ad-supported websites, and many of these websites reach very large numbers of people. So they are losing eyeballs looking at print and gaining eyeballs looking at a screen, both of which will also see adverts. Why isn’t this helping?

(Perhaps more than other puzzles I have set in the past, there are many possible answers. Don’t hedge your bets – if you have multiple solutions, put them in order of importance! I’ll summarise the results and stick my own oar in next week.)

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Things 48: Bike Parkour, Limits of Men, Wolfram Alpha

(Originally sent May 2009)

I’m considering switching to a blog format for Things in time for Things 50. Let me know if you have any strong feelings on the subject. [You’re now looking at it! – T.M. 28/5/11]

Video
Danny MacAskill does parkour/free-running but on a bike. Having seen these kind of videos before, I know a lot of them are clearly a collection of flukes edited together – but in this case the man has a staggering raw skill and most of the things he does (with the exception of the first) you get the feeling he could pull off 10 times in a row.

A slow build up, but worth it:

Quotes
Two quotes capturing a similar idea – decide for yourself just how gender-neutral ‘man/men’ is in each case:

“Every man takes the limits of his own field of vision for the limits of the world.”
– Arthur Schopenhauer

“Men perceive the world from their own point of view, which they confuse with absolute truth.”
– Simone de Beauvoir

Link
With no regard to downplaying expectations, Wolfram|Alpha is going to attempt to launch within the next 24 hours. In some sense a web front-end for Mathematica, it will essentially curate public knowledge (population demographics, poker probabilities, mathematical algorithms, and who knows what else) and make it queryable with natural(ish?) language.

The hype:
“Wolfram|Alpha is in a sense the “killer app” for Mathematica. It is a chance for Mathematica to show off the astonishing range of things it is capable of doing when it is deployed, not against a specific problem, but against all problems.”

A lovely little .pdf summarising the ‘quest for computable knowledge’ in 2 sides of A4, where Wolfram|Alpha is naturally the next great step.

A bit of geekish chest-thumping as they assert how mighty their works are.

Showing off the maths bit.

The Reality:
From Douglas Lenat:

“[it] covers a large portion of the space of queries that the average person might genuinely want to ask. […] It handles a much wider range of queries than Cyc, but much narrower than Google; it understands some of what it is displaying as an answer, but only some of it […] The bottom line is that there is a large range of queries it can’t parse, and a large range of parsable queries it can’t answer.”

Assuming they can withstand demand, you will be able to try it for yourself very shortly – they will commence launch preparations at 1am tonight / tomorrow morning.

[Of course, it’s now live, and Lenat’s observation remains accurate – T.M. 28/5/11]

Picture
Dresden Codak‘s Aaron Diaz, sporadically brilliant webcomicer, illustrates 7 types of plot twist and how they manifest across six genres, from the Reverse Macguffin in a Thriller to Double Shyamalan Mystery.

Puzzle answer: The Space Stick
Can information travel faster than light if you poke an incredibly rigid stick one light-year long? The answer is no. As many of you observed, ‘pushing’ a solid object does not magically transfer force instantaneously through it, but rather creates a compression wave as atoms or molecules push up against one another, and this is bounded by the speed of light. (There’s also the issues of the necessary rigidity being impossible, the huge amount of inertia you would be working against, needing something to push against, and gravitational complications if you’re anywhere near a planet or other large celestial body).

Many of you chose to focus instead on the general problem of faster-than-light communication. In summary, quantum entanglement does involve ‘spooky action at a distance’, but fascinatingly stops just short of being spooky enough to transfer information. Wormholes, on the other hand, are seemingly permitted by General Relativity, which would seem to lead to paradoxes, and remains a mystery.

This week’s puzzle: Wired’s “Color Scheme”
The US issue of Wired this month is guest-edited by J. J. Abrams and features a lot of interesting puzzles as well as a meta-puzzle (I think). I highly recommend ‘Color Scheme’, which you can try here [link broke, try here – metatim 03/08/15], although you’ll have to resist just clicking for the answer on the link bizarrely placed immediately below the puzzle.

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Things 47: Flying Robot Penguins, Hamster Wheel Projection, Space Stick

(Originally sent May 2009)

Film
I saw Wolverine. I found it to be acceptable. I was particularly impressed that they held almost all shots of the enjoyably over-the-top climactic battle back from the trailer.

Video
In this video there are giant flying robot penguins, after the small swimming robot penguins, after the pre-roll ad, after the video loads. But worth the wait.

Link
Since the media make it very difficult to tell if a manageable disease outbreak has grown into a rampant society-threatening pandemic of doom, here’s a map that collects data on the progress of Swine Flue cases.

Semiotically speaking, the size of the circles when zoomed out subconsciously suggests a more severe situation than is actually the case, but zooming in quickly brings things into perspective.

Quotes
Going through my old archive of things-I-heard-people-say-and-wrote-down recently, I found a cluster of baffling utterances all made by the same individual, who shall remain nickless. Er, I mean nameless.

“I’ll take your word for it – but I’m still not convinced.”

“Is it one of those things you can only see when you look at it?”

“I don’t like shopping, it’s really boring. Except when you’re buying something for yourself… or someone else.”

Picture
I’ve come across this three times this week, but feel compelled to add to its viral propagation. Here and There is a “horizonless projection” map of Manhattan, which some have more intuitively described as a “hamster wheel projection”.

Previous Puzzle – The Inconvenient Hobby

Last time I asked for a time-based goal that can easily become part of a routine but sits somewhere between once-a-day and once-a-week. Given some of the answers, it became clear I hadn’t emphasised the ‘easy’ part sufficiently!

One answer was to tie different aspects of the same goal to different days of the week For example, if the goal is to exercise 3 times a week then one could do three activities once a week each, assigning each one to a particular day of the week.

My own answer has been to create a spreadsheet which automatically pops up when I boot up my PC and tells me how many days have elapsed since I last did the six things I’m trying to do with non-trivial frequencies, and whether that exceeds my target number of days to elapse for each one. Or at least, that will be my solution, but I haven’t got around to implementing it yet, which perhaps speaks to a greater problem.

Puzzle – the Space Stick
Information cannot travel faster than the speed of light. If it did, you just need to apply a bit of special relativity (not even general relativity) and you quickly get paradoxes. There’s a deeper argument to be made there, but trust me, if information could travel faster than the speed of light, It Would Be Bad, in the Ghostbustersian sense.

(Side note: that link was an example of something Kevin Kelly has spoken about – bringing the tools we have for literacy (cut and paste, footnoting, referencing) to moving pictures. Unfortunately the audio is very quiet on the YouTube video I linked to so it probably doesn’t quite work, but it’s close. See http://kk.org/ct2/2008/06/tools-for-vizuality.php )

[We now see further problems interfering as the video has been taken down. It linked to the utterance of the phrase “that would be bad” in Ghostbusters. – T.M. 30/4/11]

Unfortunately this important speed limit on information transfer seems to break if you have an extremely long stick.

It’s difficult to state the problem both precisely and concisely, but here we go:

Imagine you are at one point in space and your friend is one light-year away. You are about to have a baby and your friend will want to know if it is a boy or a girl as soon as possible. If you were to send this message at the speed of light, which is incredibly fast, it would still take one year for the message to reach them, since you are one light-year apart.

Anticipating this issue, you have got hold of a Space Stick, which is one light-year long and as rigid and low-mass as a substance can possibly be. With the Space Stick spanning the distance between you and your friend, you arrange for it to sit above a button that activates a buzzer at their end, the idea being that you simply press on your end of the Space Stick and the button is pressed pretty much instantaneously.

With a pre-arranged code (tap for a boy, long press for a girl) it seems as if this could be used to transmit information faster than light. Why could it never work?

Things 47

Film

I saw Wolverine. I found it to be acceptable. I was particularly impressed that they held almost all shots of the enjoyably over-the-top climactic battle back from the trailer.

Video

In this video there are giant flying robot penguins, after the small swimming robot penguins, after the pre-roll ad, after the video loads. But worth the wait.

http://www.newscientist.com/article/dn16996-bionic-penguins-take-to-the-water–and-the-skies.html

Link

Since the media make it very difficult to tell if a manageable disease outbreak has grown into a rampant society-threatening pandemic of doom, here’s a map that collects data on the progress of Swine Flue cases:

http://flutracker.rhizalabs.com/

Semiotically speaking, the size of the circles when zoomed out subconsciously suggests a more severe situation than is actually the case, but zooming in quickly brings things into perspective.

Quotes

Going through my old archive of things-I-heard-people-say-and-wrote-down recently, I found a cluster of baffling utterances all made by the same individual, who shall remain nickless. Er, I mean nameless.
“I’ll take your word for it – but I’m still not convinced.”

“Is it one of those things you can only see when you look at it?”

“I don’t like shopping, it’s really boring. Except when you’re buying something for yourself… or someone else.”

Picture

I’ve come across this three times this week, but feel compelled to add to its viral propagation. Here and There is a “horizonless projection” map of Manhattan, which some have more intuitively described as a “hamster wheel projection”:

http://schulzeandwebb.com/hat/

Previous Puzzle – The Inconvenient Hobby

Last time I asked for a time-based goal that can easily become part of a routine but sits somewhere between once-a-day and once-a-week. Given some of the answers, it became clear I hadn’t emphasised the ‘easy’ part sufficiently!

One answer was to tie different aspects of the same goal to different days of the week For example, if the goal is to exercise 3 times a week then one could do three activities once a week each, assigning each one to a particular day of the week.

My own answer has been to create a spreadsheet which automatically pops up when I boot up my PC and tells me how many days have elapsed since I last did the six things I’m trying to do with non-trivial frequencies, and whether that exceeds my target number of days to elapse for each one. Or at least, that will be my solution, but I haven’t got around to implementing it yet, which perhaps speaks to a greater problem.

Puzzle – the Space Stick

Information cannot travel faster than the speed of light. If it did, you just need to apply a bit of special relativity (not even general relativity) and you quickly get paradoxes. There’s a deeper argument to be made there, but trust me, if information could travel faster than the speed of light, It Would Be Bad, in the Ghostbustersian sense.

[Side note: that link was an example of something Kevin Kelly has spoken about – bringing the tools we have for literacy (cut and paste, footnoting, referencing) to moving pictures. Unfortunately the audio is very quiet on the YouTube video I linked to so it probably doesn’t quite work, but it’s close. See http://kk.org/ct2/2008/06/tools-for-vizuality.php ]

Unfortunately this important speed limit on information transfer seems to break if you have an extremely long stick.

It’s difficult to state the problem both precisely and concisely, but here we go:

Imagine you are at one point in space and your friend is one light-year away. You are about to have a baby and your friend will want to know if it is a boy or a girl as soon as possible. If you were to send this message at the speed of light, which is incredibly fast, it would still take one year for the message to reach them, since you are one light-year apart.

Anticipating this issue, you have got hold of a Space Stick, which is one light-year long and as rigid and low-mass as a substance can possibly be. With the Space Stick spanning the distance between you and your friend, you arrange for it to sit above a button that activates a buzzer at their end, the idea being that you simply press on your end of the Space Stick and the button is pressed pretty much instantaneously.

With a pre-arranged code (tap for a boy, long press for a girl) it seems as if this could be used to transmit information faster than light. Why could it never work?

Categories
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Things 46: Miniatur Wunderland, Map of Remoteness, Door Considerations

(Originally sent April 2009)

Video
Brought to my attention by Richard, the official corporate video of ‘Miniatur Wunderland’, the largest model railway in the world, complete with earnest German-accented voice-over:

http://www.youtube.com/watch?v=PN_oDdGmKyA

Link
An article on New Scientist with some great images showing the extent of rail, road and river networks across the globe, and the resultant ‘remoteness’ score for any given location.

Quote
I’ve mentioned this quote in conversation about three times in the last two weeks so it’s evidently topical:

Don Marquis: “The chief obstacle to the progress of the human race is the human race”

Puzzle
Last week I asked why front doors open outwards. If there can be said to be one true ‘reason’, it is that there are many reasons for it to be this way round and only one for it to be the other:

– Practicality. A common situation is for one person to be opening the door for another from the inside. It’s safer to have it open towards the person doing the opening.

– Security. If the hinges are on the outside they are more easily removed. It’s cheaper to have the door open inwards if you want to have the hinges inside.

– Weather. The hinges (see above) and interior of the door will tend to be less exposed to the elements if the door opens inwards.

– Defensibility. It’s easier (that is to say, actually possible) to defend against a potential intruder by barricading a door that opens inwards.

The only reason I’ve heard for going the other way is for safety in case of a panic evacuation, where people are likely to be pushing against whoever is first to the door. This trumps the other reasons when it comes to large public venues, but is not significant in an ordinary home.

This week’s puzzle
A great way to motivate oneself to do something (such as housework or a hobby, say) is to set an achievable time-based goal that can easily become part of a routine, like doing it once a day, or once a week. For example, I frequently intend to start a draw-once-a-day routine, and send Things almost weekly; others have similar goals for photography, or blogging.

The problem is, there’s a ridiculously huge difference between ‘every day’ and ‘once a week’. What possible strategy could one use that is somewhere between these two extremes?

Picture
It’s not explained very well, but apparently the European Space Agency’s “Environmental Satellite” can use radar to detect changes in the Earth’s surface with millimetre accuracy. In this way, images from before and after the recent L’Aquila earthquake in Italy can be compared to track how the ground has been shifted. It’s a pretty fascinating visualisation.