Heeeey so fun fact: the woman in that painting is Lavoisier’s wife, Marie-Anne Pierrette Paulze, who not only acted as Lavoisier’s lab assistant but also translated English and Latin texts into French so he could read them. But she didn’t just translate, she pointed out errors in the chemistry in some of the texts. Her observations of these errors convinced Lavoisier to study combustion, which led to his discovery of oxygen. She was also critical to the publication of Lavoisier’s Elementary Treatise on Chemistry in 1789. She kept strict records of every experiment they conducted together and drew detailed diagrams of all their equipment. She also threw amazing parties and invited all the brightest minds in science so her husband could pick their brains. After Lavoisier was guillotined she secured all of his notebooks and equipment for posterity.
In short: NOBODY KICKS MADAME LAVOISIER OUT OF THE LAB.
Also, a side note: My historian husband-to-be pointed some things out to me about this painting. Notice that Madame Lavoisier is looking at the viewer, and all the light is on her, while Lavoisier himself is physically smaller than her, in shadow, and looking up to her in reverence. This isn’t a candid photograph- all of these choices are deliberate. The painting isn’t of Lavoisier- Madame Lavoisier is meant to be the central subject.
I can just imagine Lavoisier telling all his colleagues that his wife is really the one with all the clever ideas, and them patting him on the back and telling him he’s sweet for saying so.
All dogs share the same basic digestive system despite the range of physical variations (and attitudes) across different breeds. Every dog is designed to eat a raw animal-based diet, from the Chihuahua to the Great Dane. Breed-specific dog food brands are simply a marketing gimmick aimed at playing on the pet owner’s emotions, and their desire to feed their pet the best possible diet.
I don’t think that dogs need an animal-based diet. If done right they can be vegan and not contribute to the murdering of innocent animals. We’ve adapted and domesticated them enough to do so. They’ve evolved to live without meat just like us.
You’re the type of person that should probably not own animals that eat other animals.
Dogs can not and should not have a vegan diet. It is wrong and can not be correct by any means.
Unstable atomic nuclei will spontaneously decompose to form nuclei with a higher stability. The decomposition process is called radioactivity. The energy and particles which are released during the decomposition process are called radiation. When unstable nuclei decompose in nature, the process is referred to as natural radioactivity. When the unstable nuclei are prepared in the laboratory, the decomposition is called induced radioactivity.
There are three major types of natural radioactivity:
Alpha radiation consists of a stream of positively charged particles, called alpha particles, which have an atomic mass of 4 and a charge of +2 (a helium nucleus). When an alpha particle is ejected from a nucleus, the mass number of the nucleus decreases by four units and theatomic number decreases by two units. For example:
23892U → 42He + 23490Th*
The helium nucleus is the alpha particle.
Beta radiation is a stream of electrons, called beta particles. When a beta particle is ejected, a neutron in the nucleus is converted to a proton, so the mass number of the nucleus is unchanged, but the atomic number increases by one unit. For example:
23490 → 0-1e + 23491Pa**
The electron is the beta particle.
Gamma rays are high-energy photons with a very short wavelength (0.0005 to 0.1 nm). The emission of gamma radiation results from an energy change within the atomic nucleus. Gamma emission changes neither the atomic number nor the atomic mass. Alpha and beta emission are often accompanied by gamma emission, as an excited nucleus drops to a lower and more stable energy state.
Alpha, beta, and gamma radiation also accompany induced radioactivity. Radioactive isotopes are prepared in the lab using bombardment reactions to convert a stable nucleus into one which is radioactive. Positron (particle with the same mass as an electron, but a charge of +1 instead of -1) emission isn’t observed in natural radioactivity, but it is a common mode of decay in induced radioactivity. Bombardment reactions can be used to produce very heavy elements, including many which don’t occur in nature.
Chris Whittaker and Laura White of Ashfield Healthcare Communications, and Craig Armstrong of CreativeFusion used a metaphor approach that put them in first place. They scaled the human brain all the way up to the scale of the world and described the size the structures of the brain would be at that size. This brings the tiniest brain structures into a scale we can all relate to. This approach combined with a crisp, clean style, does a great job of clearly explaining the scale of the human brain.
There are about 31,251 square miles of roads, parking lots, driveways, playgrounds, bike paths, and sidewalks in the lower 48 states. If Julie and Scott Brusaw have their way, they will all someday be replaced with solar panels.
For the better part of a decade, the Idaho couple has been working on prototyping an industrial-strength panel that could withstand the weight of even the largest trucks. They now appear to have cracked the formula, developing a specially textured glass coating for the panels that can not only bear tremendous loads but also support standard tire traction.
By their reckoning, at peak installation their panelized roads could produce more than three times the electricity consumed in the U.S.
The material could power electric vehicles through a receiver plate mounted beneath the vehicle and a transmitter plate is installed in the road.
THIS IS UNBELIEVABLY IMPORTANT AND UNBELIEVABLY DISAPPOINTING THAT IT’S GOTTEN SUCH LITTLE ATTENTION.
PEOPLE THINK ABOUT IT, JUST HOW MANY ROADS THERE ARE ALL OVER THE WORLD AND HOW MUCH ENERGY COULD BE PRODUCED USING THESE LIKE SERIOUSLY “THREE TIMES THE ELECTRICITY CONSUMED IN THE U.S”. IT’S NOT JUST GOING TO HELP REDUCE THE AMOUNTS OF GREEN HOUSE EMISSIONS, IT’S GOING TO CREATE JOBS IN THE COUNTRIES IT’S USED IN. IT HAS SO MUCH EXTRA STUFF IT’S UNBELIEVABLE HOW AMAZING THE ROAD COULD BE.
THESE PEOPLE ARE SAINTS, THEY’VE WORKED THEIR BUTTS OFF AND VOLUNTEERS HAVE WORKED JUST AS HARD TO GET TO THIS LEVEL BUT THEY STILL HAVE JUST UNDER $ 800,000 TO RAISE IN 15 DAYS.
THIS SORTA STUFF IS HOW WE’RE GOING TO CREATE A GREENER EARTH AND IT’S BEEN VIRTUALLY IGNORED BY TUMBLR. WE NEED TO SUPPORT THIS STUFF AND THESE SORTS OF PEOPLE WHO SELFLESSLY DEDICATE THEIR WORK TO CREATING A BETTER WORLD.
PLEASASASASASSSSSSEEEEEEEEEEEEEEE PEOPLE NEED TO SEE THIS.
Science-Pone has spoken
Capitalist piggies need to figure out how they’re going to make money out of this and wait for all the coal deposits to be exhausted before they let anyone take notice of this awesome fucking idea.