Profile

Cover photo
LL Pete
Works at Retired
Attends YouTube U.
296,640 views
AboutPosts+1's

Stream

LL Pete

Shared publicly  - 
 
Chickens are wonderful.
 
Repulsive Chickens

It seems that volatile chemicals derived from chicken feathers repel certain mosquitoes (An. arabiensis).  The chicken smell that surrounds a live chicken is derived in part from these chemicals. It is not offensive to humans but triggers an avoidance behaviour in some mosquitoes indoors perhaps since chickens predate on these mosquitoes.  Until such time as a repellent product is created, keeping a live chicken in a cage near the bed at night may help in reducing the incidence and spread of malaria in certain parts of the world.

When the odor smelled like chickens, the team found "about 90 to 95 percent reduction in [mosquito counts]," says Ignell. A similar experiment with live animals showed that suspending a caged chicken from the bedroom ceiling was nearly as effective, with about an 80 percent reduction in mosquito counts.

More here: http://goo.gl/UgmoIK

The host census and blood meal analyses demonstrated that An. arabiensis strongly prefers human blood when host seeking indoors, while it randomly feeds on cattle, goats and sheep when found outdoors. However, An. arabiensis avoids chickens despite their relatively high abundance, indicating that chickens are a non-host species for this vector. Eleven bioactive compounds were found in the headspace of the non-host species. Six of these were species-specific, out of which four were identified using combined gas chromatography and mass spectrometry. When tested in the field, the chicken-specific compounds, isobutyl butyrate, naphthalene, hexadecane and trans-limonene oxide, and the generic host compounds, limonene, cis-limonene oxide and β-myrcene, significantly reduced trap catches within the house compared to a negative control. A significant reduction in trap catch was also observed when suspending a caged chicken next to the trap.

Paper (open): https://goo.gl/1jW84P

Image: Kassahun Jaleta http://goo.gl/4XW9iA
1 comment on original post
1
Add a comment...

LL Pete

Shared publicly  - 
 
 
04/24 Understanding Gravity: (Black Holes, Tides, and Curved Spacetime): Episode 04 Universal Gravitation

https://vimeo.com/174189970

24 lectures, 30 minutes per lecture, taught by Prof. Benjamin Schumacher, Kenyon College Ph.D., The University of Texas at Austin

Course Lecture Titles

01 The Strangest Force
02 Free Fall and Inertia
03 Revolution in the Heavens
04 Universal Gravitation
05 The Art of Experiment
06 Escape Velocity, Energy, and Rotation
07 Stars in Their Courses - Orbital Mechanics
08 What Are Tides? Earth and Beyond
09 Nudge - Perturbations of Orbits
10 Resonance - Surprises in the Intricate Dance
11 The Million-Body Problem
12 The Billion-Year Battle
13 From Forces to Fields
14 The Falling Laboratory
15 Spacetime in Zero Gravity
16 Spacetime Tells Matter How to Move
17 Matter Tells Spacetime How to Curve
18 Light in Curved Spacetime
19 Gravitomagnetism and Gravitational Waves
20 Gravity's Horizon - Anatomy of a Black Hole
21 Which Universe Is Ours?
22 Cosmic Antigravity - Inflation and Dark Energy
23 The Force of Creation
24 The Next Revolution
Understanding Gravity: (Black Holes, Tides, and Curved Spacetime) 24 lectures, 30 minutes per lecture, taught by Prof. Benjamin Schumacher, Kenyon College Ph.D.,…
View original post
1
Add a comment...

LL Pete

Shared publicly  - 
 
John Michael Greer. I hope he is wrong on the gathering storm. But he is too damned perceptive to just dismiss out of hand. This will be on the final.
The outcome of last week’s vote concerning Britain’s membership in the European Union has set off anguished cries and handwaving across much of the internet and the mass media. The unexpected defeat of the pro-EU camp, thoug...
1
Add a comment...

LL Pete

Shared publicly  - 
 
A very good commentary on Brexit.
 
A Note to My Friends Who Voted Leave
So Brexit it is. As we move forward in trying to figure out what Britain will look like under this new reality, I want to share a few…
View original post
1
Add a comment...

LL Pete

Shared publicly  - 
 
"It’s a joke. All of it: his candidacy, the apparatus of propaganda and grift surrounding it, the failures of governance and education and culture that have brought us to this place. What disturbs me most is the prospect that Donald Trump is what a very large number of Republican voters want: not a wonk, not an orator, not a statesman, not even a leader, really, if by leader you mean someone who persuades and inspires and manages a team to pursue a common good. They just want a man who vents their anger at targets above and below their status."
Hey, Republicans, how's that dopey-angry thing workin' out for ya?
1
Add a comment...

LL Pete

Shared publicly  - 
 
 
“In progressive societies the concentration[of wealth] may reach a point where the strength of number in the many poor rivals the strength of ability in the few rich; then the unstable equilibrium generates a critical situation, which history has diversely met by legislation redistributing wealth or by revolution distributing poverty.” 

    ― Will Durant & Ariel Durant, The Lessons of History

Think this doesn't apply to us?  Visit the Evonomics site and see how many serious economists see strong evidence for us approaching the kind of oligarchy crisis last prevalent in America in 1930.  Our parents in the Greatest Generation solved it with reform. While we stupidly wait and need to use revolution?

See this one especially...

http://evonomics.com/trump-phenomenon-is-a-sign-of-oligarchy/
19 comments on original post
1
Add a comment...

LL Pete

History  - 
 
 
The ISIS Death Cult
Do NOT call it Radical Islamic Terrorism

Why not? Here's why not.
Labels matter, names matter. What you call something can have immense persuasive power and influence. The ISIS people don't mind at all if they are termed radical or terrorists. That is part of their identity. But what they really love is the Islamic part. That gives them a legitimacy and respectability that can attract attention and followers from within the broader Islamic community.

ISIS is a death cult and should always be referred to as the ISIS death cult or the ISIL death cult or the Daesh death cult. Stick with the death cult part and cut out any link to Islam.

In the 1800's the British in India were faced with a decades long killing spree by the Hindu Kali death cult known as the Thuggee. This is where we got the word thugs. These Thuggees killed hundreds of thousands and possibly millions of innocent people as a part of their devotion to the Hindu goddess Kali. NOTE: The British did not label the Thuggee as a radical Hindu terrorist group. The British did not elevate that death cult into something to be associated with the larger Hindu population. The British simply stamped it out -- basically by killing them all.

Let the label of death cult become inseparable from ISIS. That will have far greater effect and go much farther than the misguided insistence of the American right wing to tie ISIS into the vastly larger and legitimate and peaceful Islamic world wide community.
LLP
View original post
10
LL Pete's profile photoDevendra purohit's profile photo
39 comments
 
+LL Pete
Yes, past never die. It's shadows keep haunting.
Add a comment...

LL Pete

Shared publicly  - 
 
The ISIS Death Cult
Do NOT call it Radical Islamic Terrorism

Why not? Here's why not.
Labels matter, names matter. What you call something can have immense persuasive power and influence. The ISIS people don't mind at all if they are termed radical or terrorists. That is part of their identity. But what they really love is the Islamic part. That gives them a legitimacy and respectability that can attract attention and followers from within the broader Islamic community.

ISIS is a death cult and should always be referred to as the ISIS death cult or the ISIL death cult or the Daesh death cult. Stick with the death cult part and cut out any link to Islam.

In the 1800's the British in India were faced with a decades long killing spree by the Hindu Kali death cult known as the Thuggee. This is where we got the word thugs. These Thuggees killed hundreds of thousands and possibly millions of innocent people as a part of their devotion to the Hindu goddess Kali. NOTE: The British did not label the Thuggee as a radical Hindu terrorist group. The British did not elevate that death cult into something to be associated with the larger Hindu population. The British simply stamped it out -- basically by killing them all.

Let the label of death cult become inseparable from ISIS. That will have far greater effect and go much farther than the misguided insistence of the American right wing to tie ISIS into the vastly larger and legitimate and peaceful Islamic world wide community.
LLP
1
1
Add a comment...

LL Pete

Shared publicly  - 
 
If Trump comes to power the American experiment is over.
 
If Trump came to power, there is a decent chance that the American experiment would be over.
7 comments on original post
2
Add a comment...

LL Pete

Problems of Belief Systems  - 
 
Feynman's technique works equally well when dealing with religious and spiritual gobbledygook.

"It turns out, all you need to do when you read or hear something that sounds smart, is try to translate it back into ordinary language - or better yet, have the person explain it for you - without using any scientific jargon or terms, and see if it still makes sense." Richard Feynman
In this fast-paced world of social media news, it can be exhausting to constantly have to figure out which of the legit-sounding headlines popping up in your newsfeed are proper science, and which are little more than pseudoscience bilge . To make...
6
Devendra purohit's profile photoDon Apperson's profile photoEric Piteau's profile photoLuis Alberto Rodriguez Goff's profile photo
9 comments
 
+Eric Piteau

Mathematics is a form of analytical philosophy

And what I mean by naturalistic philosophy, is simply positivism.
Science is pretty much the success of philosophy, in fact, science was regarded as natural philosophy up until the 18th or 19th century, and the separation of science and philosophy was and remains unjustified.
Basically, if your philosophy is not based on science (positivism/naturalism/empiricism), it is simply not philosophy but gibberish.

I'm not saying anything original, I'm simply voicing Hume, the Vienna circle etc.

Of course, this view has its criticism, but we should embrace the effectiveness of mathematics in describing the natural world, and the success and practicability of science, as evidence of their truth.
We shouldn't tolerate those who wonder about the quantity of angels that might fit on the tip of a needle, if their philosophy is not analytic, and if it does not meet the criteria of positivism, as far as I am concerned, it is gibberish.

Add a comment...

LL Pete

Shared publicly  - 
 
 
"Reflection makes experience meaningful"
"Reflection makes experience meaningful." Keilah Bias, an engineering student, said this during her presentation at the 2016 CEEA conference in Halifax. It's an important point and a pertinent claim for both educators and students. Reflection is how we thin...
View original post
1
Add a comment...

LL Pete

Shared publicly  - 
 
 
General Relativity Free Notes

If you are teaching yourself, or otherwise studying Physics whilst operating on a budget, and don't have access to a decent library, you can still take advantage of +Sean Carroll's expertise in teaching General Relativity at MIT, thanks to his generosity in leaving the lecture notes online (in various formats and two languages) and available for free download. 

    ● Special Relativity and Flat Spacetime
    
    ● Manifolds
    
    ● Curvature
    
    ● Gravitation
    
    ● More Geometry
    
    ● Weak Fields and Gravitational Radiation
    
    ● The Schwarzschild Solution and Black Holes
    
    ● Cosmology

This set of lecture notes on general relativity has been expanded into a textbook, Spacetime and Geometry: An Introduction to General Relativity, available for purchase online or at finer bookstores everywhere.

About 50% of the book is completely new; I’ve also polished and improved many of the explanations, and made the organization more flexible and user-friendly. The notes as they are will always be here for free.

More here (inc. downloads and useful links): http://goo.gl/Kz9RNK

Library Book: http://goo.gl/2j6jZf

Image and more: https://goo.gl/rJgNV3
5 comments on original post
1
Add a comment...
Story
Tagline
I haven't aged since 1976. Curious.
Introduction
I was born at a very early age, on a dark and stormy night, at the height of Empire.

Think orders of magnitude and the number four (4). 
- Geologically speaking the earth has about 4 billion years left, then it's toast -- literally. 
- Biologically or evolutionarily speaking, our species might last another 4 million. Might, maybe...who really cares? 
- 400,000 years and homo sapiens will be as homo erectus (?!?) or homo sapiens archaic seem to us now. 
- 40,000 years and homo sapiens will be culturally more like Neanderthals were then. That will be a good thing. 
- In 4000 years our era will seem like the Egyptian Kingdoms do to us now: gate, gate, para gate, para sum gate
- 400 years -- everything is politically, culturally, economically, and environmentally -- drastically, dramatically, different!  USA no mas! 
- 40 years?  Modern industrial civilization is in collapse even as we speak and has 40 years left in the tank, max. Then Mad Max! 
- Politically, for the United States the next 4 years will mark a sea change.  
- Me, I figure I got 44 years, 4 months, 4 days, 4 hours, 4 minutes and 4 seconds left, give or take.
- I will live to see the first and most dramatic stages of collapse. You should be so lucky. 

In the meantime, "Never clean; after four years it doesn't get any dirtier. Just don't lose your nerve."

*The Way I See It* -- as of January 1, 2016

The Universe is almost certainly infinite. The very idea of an infinite Universe boggles the mind but I cannot conceive of a finite universe. There has to be a before and a beyond. The universe we know of may well be limited or finite with edges and a beginning and an end, but it came into and is part of the infinite Universe beyond about which we can know nothing.

Maxim #1:
Nature bats last.

Maxim #2:  
Tribal identity and belonging is the highest human value. Everything else is an epiphenomenon -- posturing, posing, and window dressing.

Maxim #3:  
There is no supernatural, anything. Never has been; never will be. Ever. The natural world is everything that ever was, is, or will be. It is enough and far more than enough.

Maxim #4:
The supernatural is an uncontrollable variable that negates reason. 

Maxim #5:
Identity ideologies have the utility of promoting tribal identity. The downside is, they imprison the mind and make you stupid.

Dixi.

Bragging rights
I could brag about a lot of things, and a couple are true.
Education
  • YouTube U.
    present
    YouTube is probably the world's greatest resource for learning just about everything about anything.
  • Hard Knocks
  • Easy Street
  • Formal education 20 years -
  • 21 if you count kindergarten
Contact Information
Home
Address
Wherever I lay my hat is my home.
Work
AIM
I don't have a lazy bone in my body; it's my muscles.
LL Pete's +1's are the things they like, agree with, or want to recommend.
Outside the Hall of Mirrors
thearchdruidreport.blogspot.com

The outcome of last week’s vote concerning Britain’s membership in the European Union has set off anguished cries and handwaving across much

An appeal to GOP delegates: Please save your party from Trump — you stil...
www.salon.com

As party gatekeepers, you can come together to divorce yourself from the popular decision and vote your conscience

A Few Notes on Burkean Conservatism
thearchdruidreport.blogspot.com

Several times recently, in posts on this blog discussing the vagaries of current American politics, I’ve had occasion to reference my own po

The Dawn of the Cthulhucene: A Retrospective
thearchdruidreport.blogspot.com

"This year’s Earth Day in Ashland, Oregon, where I live, featured an interfaith service at the local Unitarian church, and I wasn’t too surp

The End of Ordinary Politics
thearchdruidreport.blogspot.com

Archdruids may take vacations but politics never sleeps, and during the month that’s elapsed since the last post here on The Archdruid Repor

Phases of the American Civil War
davidbrin.blogspot.com

I frequently refer to our current era of American politics as the latest phase of the U.S. Civil War… in part because the political maps so

The Decline and Fall of Hillary Clinton
thearchdruidreport.blogspot.com

The last couple of weeks in American politics have offered an interesting confirmation of some of the main themes I’ve discussed on this blo

Renewables: The Next Fracking?
thearchdruidreport.blogspot.com

I'd meant this week’s Archdruid Report post to return to Retrotopia, my quirky narrative exploration of ways in which going backward might a

Whatever Happened to Peak Oil?
thearchdruidreport.blogspot.com

A few months from now, this blog will complete its tenth year of more-or-less-weekly publication. In words the Grateful Dead made famous, it

Donald Trump and the Politics of Resentment
thearchdruidreport.blogspot.com

Of all the predictions I made for the new year in my post two weeks ago, the one that seems to have stirred up the most distress and derisio

My Prescription for 2016: Collapse Early and Often
cluborlov.blogspot.com

Tony FuturaWe are in the time of year when most sensible animals living in northerly climates are hibernating in burrows and hollow tree tru

Weekend oversleeping may be bad for your health
www.universityherald.com

According to a new study, sleeping late on weekends can be bad for health as it disrupts the regular sleeping patterns of a person.

Shrinking the Technosphere, Part II
cluborlov.blogspot.com

[Part I] Political technologies have three main goals: 1. Changing the rules of the game between participants in the political process. 2. I

The World's Silliest Empire
cluborlov.blogspot.com

I couldn't help but notice that over the past few weeks the Empire has become extremely silly—so silly that I believe it deserves the title

American “allies” in Syria: their shameful performance is perfectly expl...
cluborlov.blogspot.com

[The recent American failure to train and equip anti-Assad forces in Syria is not an isolated incident. It is a symptom of a systemic proble

It is time to get very afraid: Extremists, authoritarians now run the GO...
www.salon.com

Boehner and McConnell weren't conservative enough for them. Nor Eric Cantor. Right-wing purists won't stop here

Making A Belt Grinder
www.ibuildit.ca

Homemade 2 x 72 belt grinder

The Howling Wilderness of the Mind
cluborlov.blogspot.com

I grew up in a tiny town of less than 1500 people in western Montana. It is a land of breathtaking natural beauty, and for 18 years I lived

Peculiarities of Russian National Character
cluborlov.blogspot.com

Zimnik[Em português] [V slovenčine] [По-русски] [En français] [čeština] [In italiano] ← Ancient Slavic god Zimnik: a squat old man, long hai

The Cimmerian Hypothesis, Part Three: The End of the Dream
thearchdruidreport.blogspot.com

Let's take a moment to recap the argument of the last two posts here on The Archdruid Report before we follow it through to its conclusion.