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Pi in the Sky Over New York

7/30/2014 02:22 PM EDT
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DrFPGA
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Re: STEAM
DrFPGA   8/29/2014 7:02:06 PM
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Gives steam punk a whole new meaning too...

DrQuine
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CEO
Science and Art Intersect Over Manhattan
DrQuine   8/17/2014 2:49:59 PM
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This is a wonderful story - and one that I managed to miss until reading it in EETimes. Such public displays open up conversations that otherwise would not occur. I'm also impressed by the advances in skywriting freom what I'd previously known.  The ability to make a message quickly is essential to achieve legibility.

donq_#1
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Re: 201/64
donq_#1   8/4/2014 12:35:28 PM
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355/113 is another good fraction that is accurate to the 6th decimal place.

chanj0
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Art + Technology = ?
chanj0   7/31/2014 8:25:12 PM
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It's very cool. I wonder when artist will start using Drone to paint art in the sky.

y_sasaki
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CEO
Re: Novel way of teaching maths
y_sasaki   7/31/2014 1:29:45 PM
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Apart from smoke generator, airplane need fuel to drive thier engine. 100LL aviation gasoline (AVGAS) still contains lead (LL is short for "Low Lead") - not exactly eco-friendly :-( It has been long argument when / how do we transision from AVGAS to something else, and what is that "something else". Automobile gasoline, methanol, diesel has been proposed but not widely adopted yet (FAA certification is costly and time-consuming).

It is interesting to hear other "Integer substitution of Pi", 22/7 and 201/64. I will put them in my toolbox. Slide rule and 8-bit CPU days are fading, but I may need them someday, just in case :-)

elctrnx_lyf
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Manager
Re: Novel way of teaching maths
elctrnx_lyf   7/31/2014 1:00:21 PM
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Just imagine how many vegetables were used to produce this vegetable oil.

Susan Rambo
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Re: Novel way of teaching maths
Susan Rambo   7/31/2014 11:18:50 AM
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I wonder how much this cost. Pretty clever --  a lot of coordination must have gone into this.

Jessica Lipsky
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Re: STEAM
Jessica Lipsky   7/31/2014 10:50:29 AM
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Agreed!  The more I hear about the necisity of adding a fashion component to wearables (and fashion can be art!), the more I think about STEAM v. STEM.

Wnderer
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CEO
201/64
Wnderer   7/31/2014 9:54:07 AM
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If you're dealing with a simple processor and integer math, 201/64 can use bit shifts for divisions. You can use Num * 201 >> 6 (divide by 64)  or Num * 201 << 2 (multiply by 4) and drop the low byte.

 There is also 3217>>10 but you will need to have large enough variables to handle the 3217 multiply.

kfield
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Crowd reaction
kfield   7/31/2014 8:39:20 AM
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Totally, totally cool. I wonder how many people knew what they were seeing when they looked up at it? 

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