Energy Efficiency and the ‘Rosenfeld Effect’

Art Rosenfeld passed away two weeks ago. Most people would not remember him, but they have been affected by his simple observation in 1976 that a “proposed nuclear power plant would not be needed if refrigerators were required to be more efficient.”

Here you can see the effects on the energy efficiency in the state of California:

"The Rosenfeld Effect."
“The Rosenfeld Effect.”

Note how the energy expenditure per capita flatlines from the time he made the observation above. It was never one thing, but a lot of little things Turning off lights at night, higher efficiency furnaces and fridges and stoves. Higher efficiency lighting. Better windows.

These are the kinds of things which make a huge difference in aggregate (and he was a master at expressing how much of a difference each of them would make singularly, such as spending 20mins with light switches saves 100 gallons of gas over the weekend). These are the kinds of incremental changes which are slowly reducing the scourge of cancer[1]. These are the kinds of things which can reduce changes to the climate.

Thanks, Art. Let’s keep working and doing things a little more intelligently every day.

Art Rosenfeld, California’s Godfather of Energy Efficiency, Dies at 90

[1]This is a fascinating topic. Check out these graphs: https://www.google.ca/search?q=cancer+mortality+rate+historical

News That Fact Checks

So, a friend of mine posted this video by Keith Olbermann:

“How the Media Needs to Respond to Trump Now | The Resistance with Keith Olbermann | GQ”

The video itself is interesting for a number of reasons, but I want to talk about their reaction to it.

They mentioned that they would greatly prefer to have their news fact-checked. I replied that this was already happening, just on comedy shows, that Jon Stewart started it[0], but now Trevor Noah, Rachel Maddow, Samantha Bee, Seth Meyers, John Oliver, Stephen Colbert do.

(Note that this is already starting to seep into ‘real news channels’ with Rachel Maddow and similar.)

But this got me thinking. Why is it that comedy shows can do this and ‘news’ cannot? Why did this start in comedy shows?

One could argue that the stock in trade of comedy is juxtaposition. Juxtaposition of people saying one thing and doing another, or even saying one thing and then saying the exact opposite lends itself very naturally to comedy based on political commentary.

Perhaps because comedy is built on using blunt verbal implements[1] to provoke an audience reaction, provoking audience reactions being their stock in trade. ‘News’ is not about provoking reactions, at least not as their primary goal[2].

Perhaps this blunt type of juxtaposition needed to be started on or as a comedy show, as news shows are used to being much more polite[3].

Perhaps, as Keith Olbermann suggests, the repeal of the ‘Fairness Doctrine‘ is related to all of this, where news organizations are still behaving as if the outside world is still trying to be fair, and that they can cover ‘both’ sides of an issue without checking too hard whether one of them is propaganda.

Perhaps it has to do with fact checking, perhaps it has to do with the proliferation of news coverage of politicians allowing greater opportunities for juxtaposition, perhaps it has to do with news organizations being afraid to offend their advertisers vs. comedy shows being afraid of not offending enough and thereby not getting enough attention…

Perhaps, just as only Nixon could go to China, perhaps only news comedy could start the juxtaposition fact checking.

[0]Some people say that this was started with SNL’s ‘Weekend Update‘ in 1985. I would argue that there are definite influences, but Jon Stewart’s ‘The Daily Show’ took itself far more seriously, closer to how news shows take themselves seriously. An example from the Chevy Chase Show in 1993, 6 years before Jon Stewart took over The Daily Show (and 3 years before the Daily Show existed at all):

[1]Many comedians starting out will say offensive things to get attention (or for worse reasons). I’m talking about less verbally offensive methods of getting attention.

[2]I’m not sure what the primary motivation of news is. Perhaps to inform, perhaps to legitimize an otherwise illegitimate TV network, perhaps to sell advertising. I’d say on their best days, their primary motivation is to inform.

[3]#tonepolicing

The Largest Protest in U.S. History

Women's March, Toronto Nathan Phillips Square, estimated turnout 60,000.
Women’s March, Toronto Nathan Phillips Square, estimated turnout 60,000.

Yesterday was the largest protest in U.S. history. The 2017’s Women’s March was an assembly of people gathering to tell those freshly elected[1] that they would be held to account, to be “proactive about women’s rights”, to be “a stand on social justice and human rights issues ranging from race, ethnicity, gender, religion, immigration and healthcare”.

Estimates are still fluctuating (best estimates are currently 4.7 million), but it is clear that the protest was the largest in U.S. history, and aside from pilgrimages, the second largest peaceful gathering in human history.

Love Trumps Hate.  Women's March 2017, estimated at 60,000 in Toronto.
Love Trumps Hate. Women’s March 2017, estimated at 60,000 in Toronto.

Even from half a block away, as I was approaching the march, it was difficult to not cry in reaction. All these people uniting for this cause. “You are not alone.” And all of them so invested. There were so many signs, almost all of them handmade. There were entire families, old people, children, babies.

A heartbreaking sign drawn by a child, Women's March 2017 estimated at 60,000 in Toronto.
A heartbreaking sign drawn by a child, Women’s March 2017 estimated at 60,000 in Toronto.

Some of the signs were heartbreaking. Above you can see a sign drawn by a child perhaps of four showing that children understand what we are doing, and that what is being done is wrong.

Below, we see one of the signs which talked about intersectionality[2]. A common complaint about feminist movements is that those impacted most are women of colour and various other ‘more disadvantaged groups’, while women’s movements tend to focus on white women. This specific sign below is talking about the (very) large number of missing and killed aboriginal women:

"Am I next?"  Women's March 2017, estimated at 60,000 in Toronto.
“Am I next?” Women’s March 2017, estimated at 60,000 in Toronto.

The only real police presence (aside from blocking traffic so that the march could progress) was in front of the U.S. Consulate:

The negative space between the March and the U.S. Consulate, Women's March 2017 estimated at 60,000 in Toronto.
The negative space between the March and the U.S. Consulate, Women’s March 2017 estimated at 60,000 in Toronto.
Horsies!
Horsies!

The Horsies! above made their own comment on the situation:

Commentary from the Horsies! on the situation, Woman's March 2017, estimated at 60,000 in Toronto.
Commentary from the Horsies! on the situation, Woman’s March 2017, estimated at 60,000 in Toronto.

I like to make up stories about people that I see. My story here is that this older gentleman grew up in Eastern Europe, saw things there happen first-hand, and so has a very personal reaction to current events.

Commentary from a man who has likely seen much, Women's March 2017, 60,000 estimated in Toronto.
Commentary from a man who has likely seen much, Women’s March 2017, 60,000 estimated in Toronto.

At Queen & University, I stopped to talk to J, who was counting the number of people in the march as they went by. (He’d estimated about 20,000 up to that point, later estimates were around 60,000.)

Continuing on to Nathan Philips Square (the first photo in this post), out front we ran into three young gentlemen in immaculate suits[3]. They seemed confused, so we decided this would be a useful teachable moment. We asked them if they wanted to know what this was about, they explained that they didn’t know about what was going on. ‘What was the march about?’ ‘What were their specific policy proposals?’ (They assumed it was about reproductive rights.) Interestingly, this was difficult to articulate, perhaps because that was the wrong question.[4] I tried anyway, talking about the normalization of violence against women, reproductive rights, healthcare, climate change, but feeling like I was losing them, turned back to the teachable moment that I thought would be most effective in getting them to pay attention[5]: “The main reason protests like this happen is…” “Awareness?” “Yes. The point of the hundreds of thousands of people marching in D.C. and elsewhere is to get men in suits to pay attention and change things.” (I pointed out wordlessly that they were wearing suits, and they showed they understood. We left them thinking about it.)

Their questions were good, in a way. It highlighted for me how little I had really expressed these ideas myself, assuming their correctness, not having had to explain them to people who did not agree.

One of the few signs which contained specific policy proposals:

Some specific policy proposals, Women's March 2017, estimated 60,000 in Toronto,
Some specific policy proposals, Women’s March 2017, estimated 60,000 in Toronto,

– Electoral Reform
– Reconciliation and Restitution
– Prison Abolition[6]
– Guaranteed Income

I’ll leave you with this inspiring photo of two powerful women:

Powerful women at work, Women's March 2017, estimated 60,000 in Toronto.
Powerful women at work, Women’s March 2017, estimated 60,000 in Toronto.

Note: There were a number of photos that I did not include because they included faces.

[1]The use of ‘elected’ is problematic, but outside the scope of this post.

[2]I’m not going to try to mansplain intersectionality more than I have here. There are far better places to learn about it than from me.

[3]From their lanyards, it looks like they were at the Ontario provincials for ‘DECA‘, “an international association of high school and college students and teachers of marketing, management and entrepreneurship in business, finance, hospitality, and marketing sales and service.”

[4]Really, we want a consultative democracy, with proper rule of law. We’re never going to get things right the first time, but talking to each other about it and actually listening will help a lot. I also think that science-based decision making is best, but proper consultation is a good step in that direction.

[5]Yes, I’m aware that the discourse has moved beyond ‘men in suits have to be convinced to make the changes, no one else can’, but if it helps a few more people think about being allies, I figured it was worth it.

[6]There is a lot of literature on this topic. Put simply, prisons are an act of violence inflicted on the people by the state. Different people have different opinions on how necessary and/or helpful this is.

Burning Man 2015 in Pictures LXI: The Essence of MOOP

When we last saw our intrepid adventurers, they had just found an incarnation of balance and harmony, then had that jarringly ripped away from them by an encounter with a MOOP sculpture:

This seems neither balanced nor harmonious. But what does it mean?
This seems neither balanced nor harmonious. But what does it mean?

So, a word about moop or MOOP. ‘MOOP’ is the abbreviation for ‘Matter Out Of Place’, the anti-thesis of ‘leave no trace’. It’s been an abbreviation for long enough that it’s become a word ‘moop’. Apparently, this had been a growing issue at Burning Man, finally coming to a head for 2006, when they decided to publicly measure the amount of moop left over after the event and start to name and shame:

Moop Map 2006.  Note the suffusion of yellow.
Moop Map 2006. Note the suffusion of yellow[1].

Already you can see the difference one year later, in 2007, after just measuring and enforcement:

Moop Map 2007 "Green Wins!": Note how one year of measuring and enforcement has made a noticeable difference.
Moop Map 2007 “Green Wins!”: Note how one year of measuring and enforcement has made a noticeable difference.

2009 is better yet again:

Moop Map 2009: Yellow and red patches are even smaller.
Moop Map 2009: Yellow and red patches are even smaller.

As is 2013, our first year at the Burn, this was the ‘norm’ we first saw, and wanted to help improve upon:

Moop Map 2013: This was our first year, and the 'norm' that we wanted to improve on.
Moop Map 2013: This was our first year, and the ‘norm’ that we wanted to improve on.

2014:

IMG_2384

The placement map for 2015 (I have no idea what the spoon was for):

Map 2015: Who was where?
Map 2015: Who was where?

If you look closely, you can see The Hive, at 8:00 and Esplanade!:

If you look closely, you can see The Hive, at 8:00 and Esplanade!
If you look closely, you can see The Hive, at 8:00 and Esplanade!

And the results from the 2015 after-event cleanup! You can see the continually disturbing red and yellow rings around Esplanade which only a very few groups were able to sweep to green status:

Moop Map 2015: Note the red and yellow ring around Esplanade. :(
Moop Map 2015: Note the red and yellow ring around Esplanade. 🙁

Next time, our plucky adventurers meet the golden rhino, and make the tiniest of fist-bumps. Stay tuned!

[1]https://en.wikipedia.org/wiki/The_Long_Dark_Tea-Time_of_the_Soul I’ve always enjoyed this particular phrase, but it feels problematic for a number of reasons in the context of the book.

Burning Man 2015 in Pictures LX: Finding Balance and Harmony

When we last saw our intrepid adventurers, they had just been told by the Oracle to seek out ‘Balance and Harmony’.

Not fully understanding this command, they continued exploring the art gallery where they had found the Oracle. Equally perplexing was the whispered comment “In seeking Balance and Harmony, you shall find meaning inside and outside yourselves.”

Searching through the art gallery, like in many good art galleries, they found myriad artworks neither balanced nor harmonious:

Not exactly the definition of 'balanced' or 'harmonious'.
Not exactly the definition of ‘balanced’ or ‘harmonious’.

Some where the balance had been shattered:

While perhaps harmonious once, liquid nitrogen has shattered this balance.
While perhaps harmonious once, liquid nitrogen has shattered this balance.

But eventually, they found their way Clear to find Balance:

If you are Clear, you may find Balance.
If you are Clear, you may find Balance.

And Harmony:

Thus invigorated, their purpose became clear. To add to the complexity and messiness that is human creativity:

The balance of the human condition.  Messy, creative, and *interesting*.
The balance of the human condition. Messy, creative, and *interesting*.

The journey within and without is the meaning inside:

The meaning inside.
The meaning inside.

So, our adventurers had found the meaning within, and had found a measure of peace. But they couldn’t shake the nagging feeling that there was something larger than them that required their attention.

They saw this piece, and it shook them to the core. The first time they had seen this type of detritus since leaving the default world, they knew what their next mission would be:

This seems neither balanced nor harmonious.  But what does it mean?
This seems neither balanced nor harmonious. But what does it mean?

Join us next time, when our adventurers discover what it means to Moop!

Burning Man 2015 in Pictures LIX: You too can Golf the Man!

When we last saw our intrepid heroes, they had just gone fishing!

Flush with success (and the blood rushing to their heads from being upside-down), they continue exploring.

Their first clue for their next quest comes from an unlikely source. A miniature Man informs them: “Your next clue requires you to possess my Visor of Seeing. To acquire this artifact, you must successfully golf me.”

Making her first attempt at golfing the ramp, S shakes her fist as the ramp thwarts her.

S shakes her fist as the ramp thwarts her.
S shakes her fist as the ramp thwarts her.

S tries again, but will it be enough?:

S tries again, but will it be enough?
S tries again, but will it be enough?

Perhaps a different angle will reduce the ramp to a more manageable incline?:

Wait, *that* was the ramp?
Wait, *that* was the ramp?

Over, around, and through! The man allows S to take her prize, the Visor of Seeing. So far, so good:

"Over, around, and through.  You may now claim your prize.  May it help you find what you seek."
“Over, around, and through. You may now claim your prize. May it help you find what you seek.”

S proudly displaying her prize:

S proudly displaying her prize.
S proudly displaying her prize.

The Visor allowed S to see something unusual here. She said it was too disturbing for mortal minds to know…:

The Visor allows S to see something unusual here.  She said it was too disturbing for mortal minds to know.
The Visor allows S to see something unusual here. She said it was too disturbing for mortal minds to know.

…but it directed her towards the giant robot ‘Tobor’, who told her to ‘seek the pincer’:

Seeing deep into the robot, he said "seek the pincer".
Seeing deep into the robot, he said “seek the pincer”.

“Pince, pince. Pince, pince. Pince, pince.” “To find Harmony and Balance, you must seek wheels within wheels within pincers.” “Where would that be?” “Seek next in the pincing wheel of art.”:

"Wheels within wheels within pincers.  Seek next in the pincing wheel of art."
“Wheels within wheels within pincers. Seek next in the pincing wheel of art.”

Unsure of what the Pincer meant, our heroes sought out the art exhibition at the center of the Black Rock City ‘Wheel’. Upon arrival, they noticed that they could now see an oracle where before there was only a blank painting:

Now visible to our adventurers, S consulted the oracle, who simply said "Balance and Harmony are the answer."
Now visible to our adventurers, S consulted the oracle, who simply said “Balance and Harmony are the answer.”

Join us next time, as our intrepid adventurers seek out Balance and Harmony, whatever that might be!

1997: The year they made Contact

20 years ago, I watched Contact in the theater with my family[1]. Tonight, I watched it again, with S.

To me, it held up well as a movie. All the characters were believable, and the science and the effects were well within the normal parameters of suspension of disbelief.

What struck me[2] was how hopeful a movie it was, that our better natures would win out, that our endless curiosity would take us places we’ve never imagined.

[Note that spoilers follow]

It’s always interesting the things you remember 20 years later. “Why not make two, at twice the price?” The destruction scene. The prime numbers sounding so ominously alien from the aether. The speaking through her father. The 18 hours of static[3].

Interestingly, I had remembered that 18 hours of static as being the vindication at the end of the movie, that she was not crazy, that something had indeed happened, but I had forgotten how much it was covered up.

The one (gaping) plot hole I had missed the first time around was the absence of study and testing before a human was sent through the machine. If you look at the history of the Apollo program, you see that it was preceded by Mercury and Gemini, with dozens of sequential missions, each testing new parts, to make sure that each part of the system and plan were well-enough understood to ensure successful missions. The idea that they would build a half-trillion-dollar system in Contact and not fully study it (especially if it’s generating strange EM radiation) before sending a human through it ‘strains credulity’. Even the EM it’s radiating would be a fantastic discovery for humans.

But I can understand how they would cut out things to make a move that was watchable, and which was able to spend its time focusing on the humans in the story.

The alternative view of events that the NSA directory was trying to convince people of at the end of the movie was reminiscent (for me) of the big con[4] at the end of ‘Watchmen’, albeit at the opposite end of the hope-fear axis.

Apparently, like Bladerunner, the ending was supposed to keep your doubt alive as to whether the events she experienced had actually happened. To me, it didn’t, as 18 hours of static (and whatever metallurgical data they could get from the sphere) would be enough to prove the story.

I laughed, I cried, I am full of hope. A new year dawns. Time to use that hope to build something meaningful, starting with some words.

[1]We immediately followed it with Men In Black. I’ll leave it to you to enjoy this juxtaposition.

[2]If you’d read or watched any Carl Sagan, this would probably not be surprising. “The sky calls to us. If we do not destroy ourselves, we will one day venture to the stars.”

[3]I had remembered it as 18 minutes.

[4]In ‘Contact’, it was posited that a billionaire had faked first contact to inspire humans to push themselves outwards. In ‘Watchmen’ (the graphic novel[5]), Adrian Veidt fakes an alien invasion to scare humans into working together against a common foe.

[5]’Watchmen’ the movie simplified the plot to have Doctor Manhattan be the scapegoat. this lead to a much tighter movie, but slightly less appropriate for my analogy, however much he played with space and time.

The limits of Human Hearing II

Yesterday, we looked at sounds near the bottom of human hearing and found a lot of water. Today, we’ll look upwards. Who knows what elements we’ll find?

As you may recall, we started with a sine wave at 100Hz:

To me, this sounds almost like your canonical computer generated sound, something you might hear in a hearing test, or at the Science Center in the 1980s.

Let’s go up an octave to 200Hz:

Same kind of feel, a little higher, feels a little louder (probably again because of ‘equal-loudness contours‘).

Now, 400Hz:

This is starting to get into painful territory for me (at least through headphones).

800Hz:

This is starting to sound like an alarm.

Warning: We’re now getting into sounds that might start hurting or make your ears ring. I recommend that if you’re going to play these, that you play them at low volume first, and step them up in volume slowly.

1600Hz:

This is most definitely an alarm sound. About 2.5 octaves above middle C, it is above the normal soprano range, and therefore might reasonably be normally interpreted as an exclamation/scream, or alarm by early humans.

3200Hz:

An alarm, or medical beep.

6400Hz:

Many people would find this painful. I don’t think pitches this high are used for very much at all[1]. Probably only in movies to show a painful sound. (My right ear rang briefly after playing this sound.) It also sounds like we’re starting to reach the limitations of 44100Hz[2] sampling, as you will probably be able to hear the distortion in this clip.

12800Hz:

This is getting into the range of where humans might stop being able to hear things. It sounds (to me) like something out of place, or ear ringing (which is happening right now after playing it)[3].

25600Hz:

We’re now probably above what we can reproduce with 44,100Hz sampling. This sound seems to be inaudible at normal volumes, but when you turn it up, you’ll hear something very high-pitched, probably a lower (but still high) pitch caused by aliasing.

51200Hz:

We should not be able to hear anything here, due to it being above the sampling rate. I hear it as a loud sound a major third above the (quieter) 12800Hz .wav above. This suggests that the aliasing is producing a pitch of around 16,000Hz, which is about 1/3, or an octave and a fifth lower than the 51200 we attempted to make. (It still hurts, though.)

Next time, we’ll look at some different-shaped waveforms. Stay intuned!

[1]We’re talking about the fundamental frequency in a constellation of frequencies. I’m sure that 6400Hz occurs often, but there are generally lower pitches which it helps ‘fill out’.

[2]44,100Hz is one of the standard sampling rates, apparently chosen for Compact Discs by Sony in the Red Book standard. The article also mentions that 44,100 was chosen for Nyquist Sampling reasons to be >2x the commonly accepted threshold of human hearing (20kHz), plus a guard band for low-pass filtering. Also, for those of you who love prime factors and easy divisibility, 44100 = 2*2*3*3*5*5*7*7.

[3]Is it sympathetic? Is it because the ears or processing mechanisms are now expecting it? Are guarding against it?

The limits of Human Hearing I

Now that we’ve generated a .wav file from our sine wave, let’s take a look at some of the limitations of music as it’s written for the human ear[1].

We’ll start with the low end of human perception.

As you may recall, last time, we made a 100Hz sine wave:

This is near the bottom of what most humans can hear (and close to the bottom of what I can sing), but there’s still plenty of room to explore.

One octave down, we have 50Hz:

This is as low as I can comfortably hear (and sing!). Below this, for various reasons, things get much quieter[2] and more difficult to produce.

25Hz:

At normal volumes (halfway up on my laptop) sounds quite soft, but still audible. At louder volumes, it sounds like something you might hear in the 8-bit audio of a game from the early ’90s, perhaps in a dungeon to tell you something is oozing out of the wall.

12.5Hz:

To me, this is inaudible at normal volumes. At high volumes, it feels like what gargling would sound like in an 8-bit world.

6.25Hz:

At normal volumes, still inaudible. At high volumes, almost like water.

3.125Hz:

If the previous one sounded almost like water, this is the real deal. Still inaudible (as you would expect) at normal volumes.

1.0675Hz:

I totally did not expect to go this low in frequency. This sounds perhaps even more like water at high volumes. I wonder why all of these do. Maybe it’s some other effect unrelated to the actual frequency of the sinewave, perhaps waves (and water) do actually make sounds at such low frequencies, or those low frequencies make secondary effects/harmonics at high amplitudes.

Next time, we’ll look at the high end of human hearing. Stay tuned[3]!

[1]I’m leaving out discussion of making music to be felt by other parts of the body, although that is probably a large part of why dance clubs are so popular. We could also talk about different species, using devices, perhaps mediated human listening to music, but that is outside of scope.

[2]I had assumed it had to do with the amount of energy being transmitted being non-linear with the frequency, but apparently it has more to do with human hearing. ‘Equal-loudness contours‘ will show you the way.

[3]Hee.

If you wish to make a song from scratch, you must first Invent the Universe…

To write some music, you must first invent some instruments. To do this, one might start with a simple sine wave, then do modulations and superpositions to make various ‘instruments’.

To this end, I did a little bit of research (thanks, soledadpeandes!), and put/cribbed together some python code to make arbitrary .wav files:
# Written 2016-12-26, with special thanks to:
# https://soledadpenades.com/2009/10/29/fastest-way-to-generate-wav-files-in-python-using-the-wave-module/

import wave
import struct
import math

SAMPLING_RATE = 44100
WAV_FILE_LEN = SAMPLING_RATE * 1 # 44.1KHz sampling rate, 5 seconds
MAX_AMP = 32767
CORR_FACTOR = 10
SIN_WAV_FREQ = 100 * CORR_FACTOR # Sine wave frequency, in Hz*10 for some reason, 1000 gives 100Hz

output_file = wave.open('test.wav', 'w')
output_file.setparams((2, 2, 44100, 0, 'NONE', 'not compressed'))

for i in range (0,WAV_FILE_LEN):

data = MAX_AMP*math.sin(i*float(SIN_WAV_FREQ)/float(SAMPLING_RATE)/(math.pi/float(2)))
print data
packed_data = struct.pack('h', data)
output_file.writeframes(packed_data)
output_file.writeframes(packed_data)

output_file.close

For those who are curious, this generates a 100Hz sine wave: .

Next up, some experimentation with different pitches, perhaps different timbres. Stay tuned*!

*Also 100Hz.