A new web browser available as tech preview for Linux, Mac OS and Windows. Developed by some of the developers behind the original Opera browser, this new one is called Vivaldi. Android support is also planned. They pitch it as a web browser for the heavy duty users. I have not tried it yet, but I suppose I will have to. :-)
https://vivaldi.com/
tirsdag 27. januar 2015
mandag 26. januar 2015
Interesting new drone.
Interesting new drone.
It searches for cell phones without coverage. To be used when searching for missing persons when they are known to carry a cell phone (who doesn't) but may be outside coverage so they cannot be triangulated.
Originally shared by Teknologiske Nyheter
NTNU-studenter tror denne dronen kan redde liv i redningsaksjoner
Farkosten finner mobiltelefoner i områder uten dekning.
#NTNU #redningsaksjoner
http://bit.ly/1D8J3p4
It searches for cell phones without coverage. To be used when searching for missing persons when they are known to carry a cell phone (who doesn't) but may be outside coverage so they cannot be triangulated.
Originally shared by Teknologiske Nyheter
NTNU-studenter tror denne dronen kan redde liv i redningsaksjoner
Farkosten finner mobiltelefoner i områder uten dekning.
#NTNU #redningsaksjoner
http://bit.ly/1D8J3p4
lørdag 17. januar 2015
The best bath so far this year...
The best bath so far this year...
It had to be done, and someone had to do it, sooo... Jump in!
It had to be done, and someone had to do it, sooo... Jump in!
fredag 16. januar 2015
Is it time to stop pretending we have no influence on nature? This article is well worth a read.
Is it time to stop pretending we have no influence on nature? This article is well worth a read.
" The self-awareness that comes with recognizing our planetary power also demands we question our new role. Are we just another part of nature, doing what nature does: reproducing to the limits of environmental capacity, after which we will suffer a population crash? Or are we the first species capable of self-determination, able to modulate our natural urges, our impacts and our environment, such that we can maintain habitability on this planet into the future?"
Originally shared by David Brin
A fascinating look at our disruptive “anthropocene” geologic era: “Millions of years from now, a stripe in the accumulated layers of rock on Earth's surface will reveal our human fingerprint just as we can see evidence of dinosaurs in rocks of the Jurassic or the explosion of life that marks the Cambrian. Our influence will show up as changes in the chemistry of the oceans, the loss of forests and the growth of deserts, the damming of rivers and the retreat of glaciers. The fossil records will show the extinctions of various animals and the abundance of domesticates, the chemical fingerprint of artificial materials, such as aluminum drinks cans and plastic carrier bags and the footprint of projects like the Syncrude mine in the Athabasca oil sands of north-eastern Canada, which moves twice as much earth every year than flows down all the rivers in the world in that time.
“In the Anthropocene, humanity has become a geophysical force on a par with the earth-shattering asteroids and planet-cloaking volcanoes that defined past eras. Earth is now a human planet. We decide whether a forest stands or is razed, whether pandas survive or go extinct, how and where a river flows, even the temperature of the atmosphere. We are now the most numerous big animal on Earth, and the next in line are the animals we have created through breeding to feed and serve us. Four-tenths of the planet's land surface is used to grow our food. Three-quarters of the world's fresh water is controlled by us. It is an extraordinary time. In the tropics, coral reefs are disappearing, ice is melting at the poles and the oceans are emptying of fish because of us. Entire islands are vanishing under rising seas, just as naked new land appears in the Arctic.”
http://www.huffingtonpost.com/gaia-vince/gaia-vince-age-of-humans_b_6349788.html
Concluding with: “The Anthropocene requires us to look at the world -- and engage with it -- from a new perspective. Only then will we design ways to produce food, water and energy and create livable conditions for the Earth's species.”
http://www.huffingtonpost.com/gaia-vince/gaia-vince-age-of-humans_b_6349788.html
" The self-awareness that comes with recognizing our planetary power also demands we question our new role. Are we just another part of nature, doing what nature does: reproducing to the limits of environmental capacity, after which we will suffer a population crash? Or are we the first species capable of self-determination, able to modulate our natural urges, our impacts and our environment, such that we can maintain habitability on this planet into the future?"
Originally shared by David Brin
A fascinating look at our disruptive “anthropocene” geologic era: “Millions of years from now, a stripe in the accumulated layers of rock on Earth's surface will reveal our human fingerprint just as we can see evidence of dinosaurs in rocks of the Jurassic or the explosion of life that marks the Cambrian. Our influence will show up as changes in the chemistry of the oceans, the loss of forests and the growth of deserts, the damming of rivers and the retreat of glaciers. The fossil records will show the extinctions of various animals and the abundance of domesticates, the chemical fingerprint of artificial materials, such as aluminum drinks cans and plastic carrier bags and the footprint of projects like the Syncrude mine in the Athabasca oil sands of north-eastern Canada, which moves twice as much earth every year than flows down all the rivers in the world in that time.
“In the Anthropocene, humanity has become a geophysical force on a par with the earth-shattering asteroids and planet-cloaking volcanoes that defined past eras. Earth is now a human planet. We decide whether a forest stands or is razed, whether pandas survive or go extinct, how and where a river flows, even the temperature of the atmosphere. We are now the most numerous big animal on Earth, and the next in line are the animals we have created through breeding to feed and serve us. Four-tenths of the planet's land surface is used to grow our food. Three-quarters of the world's fresh water is controlled by us. It is an extraordinary time. In the tropics, coral reefs are disappearing, ice is melting at the poles and the oceans are emptying of fish because of us. Entire islands are vanishing under rising seas, just as naked new land appears in the Arctic.”
http://www.huffingtonpost.com/gaia-vince/gaia-vince-age-of-humans_b_6349788.html
Concluding with: “The Anthropocene requires us to look at the world -- and engage with it -- from a new perspective. Only then will we design ways to produce food, water and energy and create livable conditions for the Earth's species.”
http://www.huffingtonpost.com/gaia-vince/gaia-vince-age-of-humans_b_6349788.html
torsdag 8. januar 2015
I can't really express it better than +Yonatan Zunger does.
I can't really express it better than +Yonatan Zunger does.
I can only hope people are willing to agree that this is abuse of islam. These terrorists just use Islam as an excuse. They could have used any religion. Any muslim should stand up against these terrorists and show that this is not what they believe in.
Originally shared by Yonatan Zunger
The powerful must never be immune from mockery. If there is one thing which the past several hundred years have taught us, this is it: power which is not subject to examination, to criticism, to the salutary effects of lèse-majesté, is the greatest factory of tyranny that the world has ever known.
It is particularly ironic that the men who perpetrated today's massacre in Paris were angry over satirical depictions of Muhammad, because in doing so they have forgotten the exact reason why his depiction was forbidden: because the depiction of animals or of people encourages idolatry. [1] Islam has always been profoundly careful to avoid even the slightest suggestion of veneration of anything other than God: even the time for the mid-day prayer begins just after the Sun has passed its zenith, to avoid the appearance of Sun worship. The purpose of the hadith is to prevent people from worshipping the Prophet, not to put the Prophet on a par with God.
No, the reason for this had nothing to do with holy writ, and everything to do with people who want the right to declare that they may not be insulted, that their pride has more value than human life. And any claim which can be enforced with bloodshed is a claim which comes from power -- and thus a claim which itself has no claim on immunity from mockery. Because they demand it must not be spoken, and because they wish to prevent it from being spoken by creating a fear of murder among anyone who speaks out, it must therefore be spoken.
In the spirit of this, here are several of the cartoons which Charlie Hebdo published which brought down this rage. As its cover I present the best possible summary of all: a picture of Muhammad, saying "It's hard to be loved by assholes."
#JeSuisCharlie
[1] See e.g. Sahih al-Bukhari 3:34:318, http://www.usc.edu/org/cmje/religious-texts/hadith/bukhari/034-sbt.php#003.034.318
http://www.huffingtonpost.com/2015/01/07/charlie-hebdo-cartoons-paris-french-newspaper-shooting_n_6429552.html
I can only hope people are willing to agree that this is abuse of islam. These terrorists just use Islam as an excuse. They could have used any religion. Any muslim should stand up against these terrorists and show that this is not what they believe in.
Originally shared by Yonatan Zunger
The powerful must never be immune from mockery. If there is one thing which the past several hundred years have taught us, this is it: power which is not subject to examination, to criticism, to the salutary effects of lèse-majesté, is the greatest factory of tyranny that the world has ever known.
It is particularly ironic that the men who perpetrated today's massacre in Paris were angry over satirical depictions of Muhammad, because in doing so they have forgotten the exact reason why his depiction was forbidden: because the depiction of animals or of people encourages idolatry. [1] Islam has always been profoundly careful to avoid even the slightest suggestion of veneration of anything other than God: even the time for the mid-day prayer begins just after the Sun has passed its zenith, to avoid the appearance of Sun worship. The purpose of the hadith is to prevent people from worshipping the Prophet, not to put the Prophet on a par with God.
No, the reason for this had nothing to do with holy writ, and everything to do with people who want the right to declare that they may not be insulted, that their pride has more value than human life. And any claim which can be enforced with bloodshed is a claim which comes from power -- and thus a claim which itself has no claim on immunity from mockery. Because they demand it must not be spoken, and because they wish to prevent it from being spoken by creating a fear of murder among anyone who speaks out, it must therefore be spoken.
In the spirit of this, here are several of the cartoons which Charlie Hebdo published which brought down this rage. As its cover I present the best possible summary of all: a picture of Muhammad, saying "It's hard to be loved by assholes."
#JeSuisCharlie
[1] See e.g. Sahih al-Bukhari 3:34:318, http://www.usc.edu/org/cmje/religious-texts/hadith/bukhari/034-sbt.php#003.034.318
http://www.huffingtonpost.com/2015/01/07/charlie-hebdo-cartoons-paris-french-newspaper-shooting_n_6429552.html
søndag 7. desember 2014
My 9 year old is very fascinated by fire these days.
My 9 year old is very fascinated by fire these days. He is also extremely into science (his teacher says he is on level with 14 year olds in his questions). The links here will be a great resource for me. :-)
Originally shared by Lacerant Plainer
What is fire, electricity and magnetism - and how are they related? : At the atomic level these are very different from what we would assume at the macro level. In some ways they are all related, since it has to do with the movement of electrons and creation of charge. When you see a match light, what happens is energy is released. While most of it is in the Infrared spectrum (What we call heat), there is also some of it released in the visible spectrum (light). The release is due to the Oxygen bonding with the material you are burning. While the effect may be too small to be seen in a matchstick, there is electricity and magnetism at work here too. You can see the effect on the Sun. Our Sun (or any star) is a miasma of incandescent plasma. One way to see this is to notice that the solar flares that leap from its surface are directed along the Sun’s (generally twisted up and spotty) magnetic fields. So what is this all about?
Electricity : The nucleus of an atom is surrounded by negatively charged particles called electrons. The negative charge of an electron is equal to the positive charge of a proton, and the number of electrons in an atom is usually equal to the number of protons. When the balancing force between protons and electrons is upset by an outside force, an atom may gain or lose an electron. When electrons are "lost" from an atom, the free movement of these electrons constitutes an electric current.
Different colors in flames : Electrons on atoms have different amounts of energy proportional to the distance of their orbital from the nucleus. Electrons (which are negative) close to the positive nucleus have lower potential energy; those in "higher" energy levels farther away have more energy. In order for an e- to "jump" from a lower level to a higher one it must absorb energy, often in the form of light. Conversely when an e- "falls" from a higher level to a lower one, it gives off energy, again in the form of a photon of light.
Magnetism : All materials experience magnetism, some more strongly than others. Both electric and magnetic interactions are elements of a single phenomenon called electromagnetism. There are four fundamental forces: the strong force, the weak force, gravitation and the electromagnetic force. The field of electromagnetism deals with how electrically charged particles interact with each other and with magnetic fields.
Electrons : The picture you often see of electrons as small objects circling a nucleus in well defined "orbits" is actually quite wrong. As we now understand it, the electrons aren't really at any one place at any time at all. Instead they exist as a sort of cloud. The cloud can compress to a very small space briefly if you probe it in the right way, but before that it really acts like a spread-out cloud. For example, the electron in a hydrogen atom likes to occupy a spherical volume surrounding the proton. If you think of the proton as the size of a grain of salt, then the electron cloud would have about a ten foot radius. If you probe, you'll probably find the electron somewhere in that region.
What is plasma : The big difference between regular gas and plasma is that in a plasma a fair fraction of the atoms are ionized. That is, the gas is so hot, and the atoms are slamming around so hard, that some of the electrons are given enough energy to (temporarily) escape their host atoms. The most important effect of this is that a plasma gains some electrical properties that a non-ionized gas doesn’t have; it becomes conductive and it responds to electrical and magnetic fields. In fact, this is a great test for whether or not something is a plasma.
References and links:
http://helios.gsfc.nasa.gov/qa_sp_ev.html
https://van.physics.illinois.edu/qa/listing.php?id=2348
http://physics.info/energy/
http://www.askamathematician.com/2011/01/q-if-atoms-are-made-up-of-electrons-protons-and-neutrons-and-the-majority-of-the-volume-of-an-atom-is-space-why-do-things-appear-solid/
http://www.physlink.com/Education/AskExperts/ae569.cfm
http://van.physics.illinois.edu/qa/listing.php?id=1195
https://www.uwgb.edu/dutchs/Petrology/WhatAtomsLookLike.HTM
http://www.askamathematician.com/2013/05/q-is-fire-a-plasma-what-is-plasma/
https://www.physicsforums.com/threads/a-description-of-fire-at-an-atomic-level.421438/
Pic courtesy : www.flavorage.com
#science #scienceeveryday
The Doom that Came to Puppet
The Doom that Came to Puppet
Posts generated by a Markov chain (memoryless random state machine) trained on the Puppet documentation (puppet is a configuration management framework for computers) and the assorted works of H. P. Lovecraft
http://thedoomthatcametopuppet.tumblr.com
Posts generated by a Markov chain (memoryless random state machine) trained on the Puppet documentation (puppet is a configuration management framework for computers) and the assorted works of H. P. Lovecraft
http://thedoomthatcametopuppet.tumblr.com
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