Hedgehog Skeleton is 🔥

Taxidermist and osteologist Margaret Seagull shows us what a hedgehog skeleton looks like

 

Margaret Seagull is a taxidermist and osteologist (a person who studies the structure and function of the skeleton and bony structures), and on her Instagram account you can find a variety of taxidermy/osteology related posts (which may make some squeamish).

A recent series featuring the skeleton of a hedgehog, along with its distinctive spine and hollow ‘hairs’ made stiff with keratin, was recently shared on reddit where I came across the series of images.

According to Wikipedia, their spines are not poisonous or barbed and unlike the quills of a porcupine, do not easily detach from their bodies.

[Margaret Seagull on Instagram via reddit]

 

 

Photograph by Margaret Seagull

 

Photograph by Margaret Seagull

 

Photograph by Margaret Seagull

 

Photograph by Margaret Seagull

 

 

The Percent of Air Per Bag of Chips (Infographic)

The ‘air’ is actually nitrogen, which helps prevent the oil in the chips from spoiling

 

Have you ever wondered just how much ‘air’ is in a bag of chips? Using the water displacement method, Kitchen Cabinet Kings measured the percent of air per bag of chips for 14 different brands of chips.

The overall average across the 14 brands was 43% but each there was a variation of 19% to 59%. Check out the infographic below for the complete results. As to the methodology used:

We filled up a bucket of water, submerged the bag of chips and marked the water level. We then emptied the chips into a plastic bag and vacuum sealed the contents, submerged the bag, and measured the change in water level. The difference was measured and numbers crunched to provide, you, the reader, with an easy to read percentage. We considered the fact that no two bags of chips are exactly alike, so we tested this twice per brand with the same size bag of chips. To ensure accuracy the starting water level was kept the same over the course of the experiment and an average was taken between the two percentages per brand.

 

[Kitchen Cabinet Kings via reddit]

 

 

Putting the Pillars of Creation Into Perspective

You know it’s big when a little dot is a 170 billion kilometres long..

 

Pillars of Creation is one of the most famous photographs ever taken by the Hubble Space Telescope. In this amended version by reddit user TopalthePilot we get an appreciation for their amazing scale.

Per Wikipedia:

Pillars of Creation are elephant trunks of interstellar gas and dust in the Eagle Nebula, specifically the Serpens constellation, some 6,500–7,000 light years from Earth. They are so named because the gas and dust are in the process of creating new stars, while also being eroded by the light from nearby stars that have recently formed.
 
Taken on April 1, 1995, the astronomers responsible for the photo were Jeff Hester and Paul Scowen from Arizona State University. The region was rephotographed by ESA’s Herschel Space Observatory in 2011, and again by the Hubble in 2014 with a newer camera (seen below).

 

Photograph by ESO

 

Three-colour composite mosaic image of the Eagle Nebula (Messier 16, or NGC 6611), based on images obtained with the Wide-Field Imager camera on the MPG/ESO 2.2-metre telescope at the La Silla Observatory. At the centre, the “Pillars of Creation” can be seen. This wide-field image shows not only the central pillars, but also several others in the same star-forming region, as well as a huge number of stars in front of, in, or behind the Eagle Nebula. The cluster of bright stars to the upper right is NGC 6611, home to the massive and hot stars that illuminate the pillars. The “Spire” — another large pillar — is in the middle left of the image.

 

Credit: NASA, ESA, and the Hubble Heritage Team (STScI/AURA)

 

The towering pillars are about 5 light-years tall and bathed in the blistering ultraviolet light from a grouping of young, massive stars located off the top of the image. Streamers of gas can be seen bleeding off the pillars as the intense radiation heats and evaporates it into space. Denser regions of the pillars are shadowing material beneath them from the powerful radiation. Stars are being born deep inside the pillars, which are made of cold hydrogen gas laced with dust. The pillars are part of a small region of the Eagle Nebula, a vast star-forming region 6,500 light-years from Earth. The colors in the image highlight emission from several chemical elements. Oxygen emission is blue, sulfur is orange, and hydrogen and nitrogen are green.

 

Picture of a Single Atom Wins Top Prize in Science Photo Contest

David Nadlinger’s ‘Single Atom in an Ion Trap’ shows the atom held by the fields emanating from the metal electrodes surrounding it

 

[12 February 2018] An image of a single positively-charged strontium atom, held near motionless by electric fields, has won the overall prize in a national science photography competition, organised by the Engineering and Physical Sciences Research Council (EPSRC).

‘Single Atom in an Ion Trap’, by David Nadlinger, from the University of Oxford, shows the atom held by the fields emanating from the metal electrodes surrounding it. The distance between the small needle tips is about two millimetres.

When illuminated by a laser of the right blue-violet colour the atom absorbs and re-emits light particles sufficiently quickly for an ordinary camera to capture it in a long exposure photograph. The winning picture was taken through a window of the ultra-high vacuum chamber that houses the ion trap.

Laser-cooled atomic ions provide a pristine platform for exploring and harnessing the unique properties of quantum physics. They can serve as extremely accurate clocks and sensors or, as explored by the UK Networked Quantum Information Technologies Hub, as building blocks for future quantum computers, which could tackle problems that stymie even today’s largest supercomputers.

The image, came first in the Equipment & Facilities category, as well as winning overall against many other stunning pictures, featuring research in action, in the EPSRCs competition – now in its fifth year.

David Nadlinger, explained how the photograph came about: “The idea of being able to see a single atom with the naked eye had struck me as a wonderfully direct and visceral bridge between the miniscule quantum world and our macroscopic reality. A back-of-the-envelope calculation showed the numbers to be on my side, and when I set off to the lab with camera and tripods one quiet Sunday afternoon, I was rewarded with this particular picture of a small, pale blue dot.”

 

 

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NOAA Hurricane Hunters Fly Into the Eyes of Storms to Gather Lifesaving Data. This is Irma

Hair-raising photos and video of the NOAA Hurricane Hunters flying into the eye of Irma

 

Slicing through the eyewall of a hurricane, buffeted by howling winds, blinding rain and violent updrafts and downdrafts before entering the relative calm of the storm’s eye, NOAA’s two Lockheed WP-3D Orion four-engine turboprop aircraft, afectionately nicknamed “Kermit” (N42RF) and “Miss Piggy” (N43RF), probe every wind and pressure change, repeating the often grueling experience again and again during the course of an 8-10 hour mission. [source]

In the hair-raising video embedded below we see the brave NOAA Hurricane Hunters flying through the eye of Irma.

 

 

Specially equipped NOAA aircraft play an integral role in hurricane forecasting. Data collected during hurricanes by these high-flying meteorological stations help forecasters make accurate predictions during a hurricane and help hurricane researchers achieve a better understanding of storm processes, improving their forecast models. [source]

 

 

 

Scientists aboard the aircraft deploy Global Positioning System (GPS) dropwindsondes as the P-3 flies through the hurricane. These instruments continuously transmit measurements of pressure, humidity, temperature, and wind direction and speed as they fall toward the sea, providing a detailed look at the structure of the storm and its intensity. The P-3s’ tail Dopper radar and lower fuselage radar systems, meanwhile, scan the storm vertically and horizontally, giving scientists and forecasters a real-time look at the storm. The P-3s can also deploy probes called bathythermographs that measure the temperature of the sea. [source]

 

 

 

 

Storm surge forecasts have benefited from the addition of NOAA-developed Stepped Frequency Microwave Radiometers (SFMRs) to NOAA’s P-3s. SFMRs measure over-ocean wind speed and rain rate in hurricanes and tropical storms, key indicators of potentially deadly storm surges. Surge is a major cause of hurricane-related deaths. [source]

 

 

 

In addition to conducting research to help scientists better understand hurricanes and other kinds of tropical cyclones, NOAA’s P-3s participate in storm reconnaissance missions when tasked to do so by the NOAA National Weather Service’s National Hurricane Center. The purpose of these missions is primarily to locate the center of the storm and measure central pressure and surface winds around the eye. (The U.S. Air Force Reserve’s 53rd Weather Reconnaissance Squadron also supports this mission with their WC-130J aircraft.) Information from both research and reconnaissance flights directly contribute to the safety of people living along and visiting the vulnerable Atlantic and Gulf coasts. [source]

 

 

In 1885 Wilson Bentley Took the First Ever Photographs of Snowflakes (23 Photos)

He believed no two snowflakes were the same

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For his 15th birthday, Wilson Alwyn Bentley (February 9, 1865 – December 23, 1931) was given a microscope by his mother.

“Under the microscope, I found that snowflakes were miracles of beauty; and it seemed a shame that this beauty should not be seen and appreciated by others. Every crystal was a masterpiece of design and no one design was ever repeated. When a snowflake melted, that design was forever lost. Just that much beauty was gone, without leaving any record behind.” [source]

 

It took Bentley two years of painstaking trial and error, but on January 15, 1885, at the age of 19, he made the world’s first photomicrograph of a snow crystal by adapting a microscope to a bellows camera. He would go on to capture more than 5000 snowflakes during his lifetime, not finding any two alike. [source]

 

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Kenneth G. Libbrecht notes that the techniques used by Bentley to photograph snowflakes are essentially the same as used today, and that while the quality of his photographs reflects the technical limitations of the equipment of the era, “he did it so well that hardly anybody bothered to photograph snowflakes for almost 100 years”. The broadest collection of Bentley’s photographs is held by the Jericho Historical Society in his home town, Jericho, Vermont. [source]

 

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The process he developed was unique and innovative, and when he first shared his images with others, many people, especially scientists and professional photographers, “doubted Bentley’s ability and his images'” authenticity. However, over time Bentley was recognized for what he had achieved. His boyhood interest in the snow’s microscopic beauty expanded to include a scientific curiosity of snow crystals’ structure and development, and he devoted himself to his photography and study of snow and other atmospheric phenomenon. [source]

 

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The fascination for snow that drove his scientific curiosity and photographic innovations led Bentley to record detailed weather observations and notes on his photographic techniques. Bentley filled nine notebooks with 47 years’ worth of his observations and analysis, and these records provide useful information about daily weather conditions, and valuable details of his many sessions photographing snow crystals. [source]

 

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He published 49 popular and 11 technical articles about snow crystals, frost, dew, and raindrops, including the entry on “snow” in the 14th edition of the Encyclopedia Britannica. Although during his lifetime the scientific community largely ignored his innovative work, he was elected, in 1920, a Fellow of the American Meteorological Society.
 
Since his death in 1933, he has achieved a reputation as a pioneering weather scientist and photographer. He lived to see Snow Crystals, a book of his snow crystals images, published in 1931, but died of pneumonia that same year, after walking home through a blizzard. Because of his wonderful work with snow crystals, Wilson became affectionately known as “Snowflake” Bentley. [source]

 

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Sources

New York Heritage: Bentley Snow Crystal Collection
Jericho Historical Society: Official Snowflake Bentley Web Site
Wikipedia: Wilson Bentley
All photographs courtesy of The MET

 

 

Picture of the Day: Surface Tension

“Do you have a minute to talk about your car insurance?”

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Photograph by DaveJahVoo on reddit

 

Here we see a Gecko just hanging out on the surface of redditor DaveJahVoo’s fish tank. This is a great example of surface tension, which Wikipedia describes as:

 

The elastic tendency of a fluid surface which makes it acquire the least surface area possible. Surface tension allows insects (e.g. water striders), usually denser than water, to float and stride on a water surface.
 
At liquid-air interfaces, surface tension results from the greater attraction of liquid molecules to each other (due to cohesion) than to the molecules in the air (due to adhesion). The net effect is an inward force at its surface that causes the liquid to behave as if its surface were covered with a stretched elastic membrane. Thus, the surface becomes under tension from the imbalanced forces. [source]

 

 

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Picture of the Day: An Avalanche on Mars as It was Occurring

In an incredible feat of technology and timing, the HiRISE camera captures an avalanche from above as it was occurring

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In an incredible feat of technology and timing, the HiRISE camera captured at least four avalanches/debris falls in action on the surface of Mars. According to the HiRISE team:

 

“Material, likely including fine-grained ice and dust and possibly including large blocks, has detached from a towering cliff and cascaded to the gentler slopes below. The cloud is about 180 meters across and extends about 190 meters from the base of the steep cliff. Shadows to the lower left of each cloud illustrate further that these are three dimensional features hanging in the air in front of the cliff face, and not markings on the ground (sun is from the upper right)…
 
From top to bottom this impressive cliff is over 700 meters tall and reaches slopes over 60 degrees. [source]

 

The HiRISE (High Resolution Imaging Science Experiment) is a 65 kg (143 lb), US$40 million camera on board the Mars Reconnaissance Orbiter. It consists of a 0.5 m (19.7 in) aperture reflecting telescope, the largest so far of any deep space mission, which allows it to take pictures of Mars with resolutions of 0.3 m/pixel (about 1 foot), resolving objects below a meter across. [source]

 

 

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12 Highlights from the Supermoon Space Launch

The historic Expedition 50 marks notable firsts for the French as well as Female astronauts

 

At 3:20 p.m. EST on Thursday, Nov. 17 (2:20 a.m. local time, Nov. 18) the Soyuz MS-03 spacecraft launched from the Baikonur Cosmodrome in Kazakhstan to the International Space Station.

On board were three Expedition 50 crewmembers (NASA astronaut Peggy Whitson, Russian cosmonaut Oleg Novitskiy of Roscosmos, and ESA astronaut Thomas Pesquet) who will spend the next 6 months aboard the ISS.

After orbiting the Earth for approximately two days, the Soyuz MS-03 spacecraft successfully docked with the space station’s Rassvet module at 4:58 p.m. EST on November 19th.

According to Space.com, the ESA’s Thomas Pesquet is the first French astronaut to ever live aboard the ISS; while NASA’s Peggy Whitson will become the first woman to ever command the space station twice, after she became the first-ever female commander of the ISS during Expedition 16. Since she became an astronaut in 1996, Whitson has spent 377 days in space and has performed six spacewalks, or extravehicular activities. [source]

Below you will find some amazing highlights from the Expedition 50 launch by NASA’s Bill Ingalls. To see the complete 163-photo gallery, visit Flickr.

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

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Photograph by NASA/Bill Ingalls

 

 

Solar-Powered, Glow in the Dark Bike Lanes are Being Tested in Poland

This could be cool for any pathway

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Solar-powered, glow in the dark bike lanes are currently being tested near Lidzbark Warminski in the north of Poland. When fully charged, the synthetic material can provide up to 10 hours of light according to the material’s creators, TPA Instytut Badań Technicznych Sp. z o.o.

The project, while similar in concept to Studio Roosegaarde’s Starry Night Bike Lane, differs in the technology used, as Studio Roosegaarde’s was LED-powered and temporary.

The project is still in the testing phase and it will be interesting to see if the material proves viable for bike paths and other public uses.

[via Bored Panda]

 

 

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