The Latest

nemfrog:

Fig. 4. Chladni’s figures of vibrating plates. 1872.
Aug 1, 2014 / 416 notes

nemfrog:

Fig. 4. Chladni’s figures of vibrating plates. 1872.

(via scientificillustration)

victoriousvocabulary:

ANTHOMANIA
[noun]
an extravagant fondness for flowers; an extreme love for flowers.
Etymology: from Ancient Greek ánthos, “flower” +‎ -mania, “madness”.
[Jérémie Fleury - Little Ida’s Flowers]
Jul 31, 2014 / 618 notes

victoriousvocabulary:

ANTHOMANIA

[noun]

an extravagant fondness for flowers; an extreme love for flowers.

Etymology: from Ancient Greek ánthos, “flower” +‎ -mania, “madness”.

[Jérémie Fleury - Little Ida’s Flowers]

Jul 31, 2014 / 21,470 notes
heythereuniverse:

Compound eye of olive fruit fly (Bactrocera oleae) | ranton.it
Jul 31, 2014 / 147 notes

heythereuniverse:

Compound eye of olive fruit fly (Bactrocera oleae) | ranton.it

(via mentalalchemy)

nativeamericannews:

Snoqualmie Tribe Gives $250,000 in Aid for Washington Fire Victims
As the Carlton Complex of fires rages on in Washington State at just 67 percent containment, the Snoqualmie Tribe has announced a $250,000 donation for relief efforts.The tribe will donate $200,000 to the American Red Cross Eastern Washington Region, earmarked for the 2014 fire victims, and $50,000 to Washington Animal Search and Rescue, according to a statement.
Jul 31, 2014 / 21 notes

nativeamericannews:

Snoqualmie Tribe Gives $250,000 in Aid for Washington Fire Victims

As the Carlton Complex of fires rages on in Washington State at just 67 percent containment, the Snoqualmie Tribe has announced a $250,000 donation for relief efforts.
The tribe will donate $200,000 to the American Red Cross Eastern Washington Region, earmarked for the 2014 fire victims, and $50,000 to Washington Animal Search and Rescue, according to a statement.




Jul 31, 2014 / 270 notes

spaceplasma:

Helioseismology: seismology of the Sun

The Sun oscillates and vibrates at many frequencies, like an ocean surface or …like a bell. Certain frequencies are amplified by constructive interference(wave propagation) and the turbulence “rings” the sun like a bell. Unfortunately, sound does not carry through the vacuum between the Sun and the earth, so we have to “listen" to the oscillations by looking at the motions of material on the surface of the Sun. With the right instruments, scientists can "hear" this ringing or pulsations from the Sun. To do this, they use an instrument called a Michelson Doppler Imager (MDI), mounted on the SOHO spacecraft and the Helioseismic and Magnetic Imager (HMI), one of the three instruments that make up the Solar Dynamics Observatory (SDO).

Although direct study of its interior is impossible —mostly because the Sun is nearly opaque to electromagnetic energy, insights into the conditions within the Sun may be gained by observing oscillating waves, rhythmic inward and outward motions of its visible surface. These oscillations on the surface are due to sound waves generated and trapped inside the sun. Sound waves are produced by pressure fluctuations in the turbulent convective motions of the sun’s interior. These trapped sound waves set the sun vibrating in millions of different patterns or modes. Using this acoustic energy, we can “see into the Sun”, just as geologists use seismic waves to study the structure of the Earth, the discipline of helioseismology makes use of acoustic pressure waves (infrasound) traversing the Sun’s interior. These oscillations are seen as volumes of gas called granules near the Sun’s surface that rise and fall with a particular frequency. It is like seeing the rolling motions of convection cells on the surface of  boiling water. This happens very close to the surface where the flow of energy that started in the nuclear reactions in the core reaches the surface and suddenly escapes. The sound from the convection is then trapped and filtered inside the sun to produce the solar music

Helioseismologists can use the properties of these waves to determine the temperature, density, composition, and motion of the interior of the sun. The spectral lines emitted from gas moving upwards will be slightly Doppler-shifted to the blue; spectral lines from gas moving downwards will be slightly Doppler-shifted to the red. In this way the rolling motions of convection near the Sun’s surface can be mapped out. There are three types of oscillations. Pressure modes (p-modes) are sound waves trapped in the temperature gradient (like an echo bouncing around inside a cavern). Fundamental modes (f-modes) or surface gravity waves are caused by gravitational interactions with the sun’s surface and resemble ocean waves. Gravity modes (g-modes) are not completely understood, but they are believed to be the result of buoyancy effects. All the known pressure and fundamental modes (some 10 million) have oscillation periods of less than 18 minutes, and most are around 5 minutes. The gravity modes are not known conclusively to exist, but they are predicted to have periods of 40 minutes or longer (160-min).

Further readings:

(via the-science-of-time)

Jul 31, 2014 / 119 notes
Sometimes it’s pretty where I live
Jul 31, 2014

Sometimes it’s pretty where I live

Jul 30, 2014 / 13,913 notes

sixpenceee:

If you thought the post on twins sharing consciousness was awesome, wait until you hear this.

A 44-year-old French man one day went to the trip to the doctor’s because he felt a pain in his left leg. He’s a married man with two kids and a steady job.

Doctor’s found that he had hydrocephalus as a child (when your brain is filled with fluids) so they decided to run some brain scans.

What they found was that the majority of his head was filled with fluid. Over time, the buildup caused his lateral ventricles to swell so much that his brain had been flattened to a thin sheet.

Doctors estimated that his brain mass had been reduced by at most 70%, affecting the areas in charge of motion, language, emotion, and, well, everything.

Shockingly, he was fine. While his IQ was only 75, he wasn’t mentally challenged. He held a steady job, raised a family, and didn’t have trouble interacting with others.

Over time, his brain had adapted to all that pressure, and even though he had fewer neurons that most, Jacques was still a fully functional human being.

The doctors drained the fluid and while his brain is much smaller now, he is still a healthy individual with a normal life.

SOURCE

(via shychemist)

mindblowingscience:

Brainwaves can predict audience reaction of television programming

Media and marketing experts have long sought a reliable method of forecasting responses from the general population to future products and messages. According to a study conducted at the City College of New York (CCNY) in partnership with Georgia Tech, it appears that the brain responses of just a few individuals are a remarkably strong predictor.




By analyzing the brainwaves of 16 individuals as they watched mainstream television content, researchers were able to accurately predict the preferences of large TV audiences, up to 90 percent in the case of Super Bowl commercials. The findings appear in a paper entitled “Audience Preferences Are Predicted by Temporal Reliability of Neural Processing,” which was just published in the latest edition ofNature Communications.
"Alternative methods such as self-reports are fraught with problems as people conform their responses to their own values and expectations," said Jacek Dmochowski, lead author of the paper and a postdoctoral fellow at CCNY at the time the study was being conducted. However, brain signals measured using electroencephalography (EEG) can, in principle, alleviate this shortcoming by providing immediate physiological responses immune to such self-biasing. "Our findings show that these immediate responses are in fact closely tied to the subsequent behavior of the general population," he added.


Continue Reading.
Jul 30, 2014 / 18 notes

mindblowingscience:

Brainwaves can predict audience reaction of television programming

Media and marketing experts have long sought a reliable method of forecasting responses from the general population to future products and messages. According to a study conducted at the City College of New York (CCNY) in partnership with Georgia Tech, it appears that the brain responses of just a few individuals are a remarkably strong predictor.

By analyzing the brainwaves of 16 individuals as they watched mainstream television content, researchers were able to accurately predict the preferences of large TV audiences, up to 90 percent in the case of Super Bowl commercials. The findings appear in a paper entitled “Audience Preferences Are Predicted by Temporal Reliability of Neural Processing,” which was just published in the latest edition ofNature Communications.

"Alternative methods such as self-reports are fraught with problems as people conform their responses to their own values and expectations," said Jacek Dmochowski, lead author of the paper and a postdoctoral fellow at CCNY at the time the study was being conducted. However, brain signals measured using electroencephalography (EEG) can, in principle, alleviate this shortcoming by providing immediate physiological responses immune to such self-biasing. "Our findings show that these immediate responses are in fact closely tied to the subsequent behavior of the general population," he added.

Continue Reading.