Daily Inspiration;; Darren Hopes
In modern times, the term became widespread because Norbert Wiener wrote a book called “Cybernetics” in 1948. His sub-title was “control and communication in the animal and machine”. This was important because it connects control (a.k.a., actions taken in hope of achieving goals) with communication (a.k.a., connection and information flow between the actor and the environment). So, Wiener is pointing out that effective action requires communication.
…where objectivity derives from shared agreement about meaning, and where information (or intelligence for that matter) is an attribute of an interaction rather than a commodity stored in a computer.
Cosmic ‘web’ seen for first time
The hidden tendrils of dark matter that underlie the visible Universe may have been traced out for the first time.
Cosmology theory predicts that galaxies are embedded in a cosmic web of “stuff”, most of which is dark matter.
Astronomers obtained the first direct images of a part of this network, by exploiting the fact that a luminous object called a quasar can act as a natural “cosmic flashlight”.
An amazing article from Ed Yong describes a new mechanism for pattern formation:
Zebrafish patterns aren’t just controlled by a chemical reaction-diffusion mechanism — the pigment cells actually chase each other! The different color cells sort themselves into stripes, spots, or other patterns depending on their relative speeds.
The universe is mostly hydrogen and ignorance
John Dobson, telescope designer, former monk and open source astronomy advocate, dies at 98
If it can be destroyed by the truth, it deserves to be destroyed by the truth.
All Of The Asteroids That Could Potentially End The World
Here’s the path of the nearly 1,400 asteroids that would cause “major devastation” if they hit our planet.
It’s no surprise that NASA is keeping track of all potentially hazardous objects, or PHOs, that surround our planet. If it’s closer than 4.6 million miles away and larger than about 350 feet in diameter, NASA’s watching it. And if a comet or asteroid’s orbit comes close enough to ours that there’s some potential for it to collide with our planet, NASA classifies it as a PHO. If something that size smacked Earth, it’d cause a major tsunami (if it hit water) or major regional destruction (if it hit land).
There are 1,397 known potentially hazardous asteroids (PHAs) at the moment, which you can see in this list. (The other PHOs are comets.) But why look at a list when you can look at a massive gorgeous picture? The image above, taken from NASA/JPL’s Photojournal, shows all 1,397 of those PHAs as represented by their orbits. Kind of amazing that we haven’t been hit by one, isn’t it?
Fireflies talk to each other with light.
Fireflies emit light mostly to attract mates, although they also communicate for other reasons as well, such as to defend territory and warn predators away. In some firefly species, only one sex lights up. In most, however, both sexes glow; often the male will fly, while females will wait in trees, shrubs and grasses to spot an attractive male. If she finds one, she’ll signal it with a flash of her own.
Fireflies produce “cold light.”
Firefly lights are the most efficient lights in the world—100% of the energy is emitted as light. Compare that to an incandescent bulb, which emits 10% of its energy as light and the rest as heat, or a fluorescent bulb, which emits 90% of its energy as light. Because it produces no heat, scientists refer to firefly lights as “cold lights.”
In a firefly’s tail, you’ll find two chemicals: luciferase and luciferin. Luciferin is heat resistant, and it glows under the right conditions. Luciferase is an enzyme that triggers light emission. ATP, a chemical within the firefly’s body, converts to energy and initiates the glow. All living things, not just fireflies, contain ATP.
Firefly eggs glow.
Adult fireflies aren’t the only ones that glow. In some species, the larvae and even the eggs emit light. Firefly eggs have been observed to flash in response to stimulus such as gentle tapping or vibrations.
Fun Fact: Light Organs
The glow from fireflies or lightning bugs comes from photic organs, or organs that produce light.
Fun Fact: Making Light
Fireflies combine three special substances in their photic organs to make light. The three substances are:
luciferin (a pigment),
luciferase (an enzymatic catalyst),
and ATP (nucleotide that provides energy to cells).
How to Catch Lightning Bugs
Tips on how best to catch lightning bugs or fireflies. | More
Creating Firefly Habitats
What kind of habitat do fireflies like? Why do they like standing water? | MoreCredit: Firefly.org
The GRAIL mission was launched by NASA on September 10, 2011 and consisted of two small spacecraft, GRAIL A and GRAIL B. The acronym GRAIL stands for Gravity Recovery and Interior Laboratory and aimed to measure in very high quality the gravitational field of the moon. The two spacecraft, nicknamed Ebb and Flow, orbited the Moon for almost a year, starting on 31 December 2011, and ending on December 17, 2012 when they both impacted the surface of the moon. In the images generated, see above, the red zones are areas of above average gravitational pull, while blue areas are below the average gravitational attraction. The data gathered by Ebb and Flow will be used to help create much more accurate fuel consumption models for future missions to and around the moon.
A new project to create a life-like simulation of Caenohabditis elegans (pictured above), a roundworm. OpenWorm isn’t like these other initiatives; it’s a scrappy, open-source project that began with a tweet and that’s coordinated on Google Hangouts by scientists spread from San Diego to Russia. If it succeeds, it will have created a first in executable biology: a simulated animal using the principles of life to exist on a computer.
Protein Homology Network, data visualization by Alex Adai, Institute for Cellular and Molecular Biology – University of Texas, 2002
“The network summarizes the results of aprox. 92 billion pairwise amino acid sequence alignments between 289,069 proteins from 90 genomes. The final network is composed of 27,325 connected sets summing to 7,940,873 edges. An edge is colored blue if it connectes 2 proteins from the same species, and red if it connects 2 proteins from 2 different species. If that information is not available the edges are colored based on layout hierarchy.”
<meta property=“og:description” content=
”This is a website I created after being affected by the 3.11 Earthquake in Japan,
and the nuclear power plant incidents that followed.”