electrical-fields

As if bumblebees weren’t already cool enough, this just in: they’re using electric fields to judge whether or not a flower has already been plundered of its pollen by another pollinator. This article from Scientific American says that the bees “build up a positive electrical charge as they rapidly flap their wings.” This is useful to the bees and the flowers as it helps the pollen more tightly cling to the bees. But it also turns out that it minutely changes the electrical field of flowers which have already been visited by another bee, and the bees can see this. As I have said so many times before, and will probably say a thousand times again, nature is so totally cool! ~AR

(via Bumblebees Sense Electric Fields in Flowers: Scientific American)

Small Scale Lightning: The Electric spark/arc

An Electric Spark is an abrupt electrical discharge that occurs when a sufficiently high electric field creates an ionized, electrically conductive channel through a normally-insulating medium, often air or other gases or gas mixtures. The rapid transition from a non-conducting to a conductive state produces a brief emission of light and a sharp crack or snapping sound. 

A spark is created when the applied electric field exceeds the dielectric breakdown strength of the intervening medium. For air, it is about 30 kV/cm at sea level. At the beginning stages, free electrons and ions in the gap are accelerated by the electrical field. 

As they collide with air molecules, they create additional ions and electrons causing the air in the gap to become electrically conductive in a process called dielectric breakdown. A continuous discharge however is called an electric arc.

An electric spark can also occur within insulating liquids or solids, but the breakdown mechanisms are significantly different than for sparks in gases. Lightning is an example of an electric spark in nature, while electric sparks, large or small, occur in or near many man-made objects, both by design and sometimes by accident.

Giffed by: rudescience  From: this video

Requested by shadowalex2000

While generally regarded as pseudoscience, the concept of an aura has a sort of scientific basis. The basic idea is this: You are made up of a large collection of vibrating, oscillating protons and electrons. Because protons and electrons have charge, their movement generates an electric and magnetic field–although a very weak one. The Earth’s magnetic field, for example, is caused by the spinning, molten iron and nickel in the planet’s core. An aura is the same idea. Moving charge = magnetic field.

So how would you detect an aura, hypothetically? Again, this is all pseudoscience with no real experimental backup, but many parapsychologists claim to detect the human aura through Kirlian Photography. You can think of Kirlian Photography like the Northern Lights but on a very small scale. Essentially, if you give an object energy (through a battery for Kirlian imaging, through cosmic rays for the Northern Lights), the object will emit a small aurora, which can then be captured on photographic film. It’s simply a way of detecting very weak electric and magnetic fields.

While a valid method of imaging, the detection of “auras” through Kirlian Photography is largely disputed. Yes, we can detect an electric field from our bodies with this method, but there’s no solid scientific evidence to suggest it changes based on our mood or health.

That being said, there is some science behind people who can “see” auras. The phenomenon synesthesia, in Greek, means “together senses”. It describes the very scientific phenomenon of mixing up your senses, such as seeing sound, hearing a smell, or feeling music. On a smaller note, every time you smell a good meal, and you can imagine exactly how it tastes before you even take a bite; that’s synesthesia.

Interestingly enough, many aura-oriented healers exhibit extreme forms of synesthesia. But, as you might imagine, the actual healing that goes on has no scientific foothold outside of the placebo effect.

As far as Lucario goes, neither of these options would be of use to him in sensing what a person is “feeling or thinking”. There is, however, a significantly more understood, very scientific concept of hormones, which are chemicals your body regularly releases based on mood, health, hunger, senses, and even aging.

The endochrine system is the collection of glands that produces, transports, and regulates hormones. There a lots of different hormones which do different things, but they’re all part of the incredibly complex chemical processes that make our bodies work.

Many hormones are released through our skin, and there’s actually a bit of evidence that suggests humans can even smell each other’s hormones. That fact is likely almost instinctually involved in romantic and sexual attraction.

If Lucario could smell or even just detect hormones, he would be able to tell a lot about a person. If they are angry, sad, lonely, hungry for hamburgers or a vegetarian, if someone is sleep deprived, sick, or pregnant, he could be able to tell.

Lucario can sensitively detect hormone levels in an animal, possibly through an advanced olfactory system. Because of this, it can deduce what a person is thinking or feeling based off of the hormones they are releasing.

Does this mean that “Aura Sphere” is just a big ball of hormones Lucario throws at his opponents? I’d rather not find out.

anonymous asked:

What are the best representations of the atomic theory? How are particles actually measured and visualized? What is the smallest particle we can see, with aide? What is the best evidence that proves the existence of the atom? I use particle, atom, electron here interchangeably for your answering purposes.

Can’t you just ask why clouds are white…

  • What are the best representations of the atomic theory? 

The best rep. of the atomic theory is the current theoretical model of the atom which involves a dense nucleus surrounded by a probabilistic cloud of electrons.

  • How are particles actually measured and visualized? 

If they’re heavy enough you put them on a scale and do some other measurements and then some very simple math. 

But if we’re dealing with subatomic particles its a little bit more complicated. Usually they are measured by their relationship with energy and momentum (Einsteins famous equation)

For example if you wanted to measure a proton, you put it in a mass spectrometer. Accelerating it to a known electric field gives it kinetic energy proportional to its charge, causing the proton to move in a circular path in a uniform, well-calibrated magnetic field allowing the momentum to be measured quite precisely.

Visualizing them is another thing. 

Believe it or not, this is a color photograph of a single trapped barium ion held in a radio-frequency Paul trap. Resonant blue and red lasers enter from the left and are focused to the center of the trap, where the single ion is constrained to orbit a region of space about 1 millionth of a meter in size.

another great way is when Gerd Binnig and Heinrich Rohrer won the Nobel Prize in Physics in 1986 for inventing the Scanning tunneling microscope. An instrument for imaging surfaces at the atomic level. IBM made a movie with it called a boy and his atom. (below you see carbon monoxide molecules moved frame by frame to make a movie, gif made by me)

  • What is the smallest particle we can see, with aide? 

My educated guess would be the photon. If we were to take it’s size by wavelength we could probably detect high energy gamma photons which could be considered the smallest particle we could see with the use of an instrument. 

The smallest particle…or sub-particle by mass would be the neutrino, we havn’t measured a the correct mass of a neutrino yet, but we know that its the particle with the least mass out there we can detect (or not, i don’t really know, google it)

  • What is the best evidence that proves the existence of the atom? 

Is this a joke? I hope it is. Because almost everything you see with you naked eye is made out of atoms, and there are countless experiments proving the existence of the atom AS I HAVE SHOWN ABOVE… Believing anything else would be blasphemy in the eyes of science.

You can litterally see atoms these days, and some sub atomic particles too, take for example an alpha particle which is just a helium nucleus. We can see those in a cloud chamber.

(gif taken from my post: Background Radiation in a cloud chamber)

I hope my answers satisfy your questions. Cheers

-rudescience

These silicon tree rings will one day be part of the world’s largest digital camera—a 3.2-gigapixel array dedicated to unraveling the mysteries of dark energy and dark matter.

To make the image sensors for the galaxy-gazing Large Synoptic Survey Telescope, we melt silicon so that it grows cylindrically outward from the center. But even our cleanroom controls can’t overcome inevitable imperfections.

Tiny variations in the silicon or the temperature produce these concentric rings. That subtle flux, seen in shades of gray, produces electric fields that can distort the image. And here’s the big concern: What if those distortions interfere with the subtle signatures of 10 billion distant galaxies?

Don’t worry, y’all. The sensors just passed their vision test, complete with checks against complex simulations of the way dark matter bends light across the cosmos.

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Jahiliyya Fields // Clear Collar

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(via https://www.youtube.com/watch?v=3hHv5iKbRTc)

At the Intersection: Music & Field Recordings

At the Intersection: Music & Field Recordings

Recent albums from Phil Edwards, Emile Milgrim & T. Wheeler Castillo and D Bayne exist at the intersection between performed sound and field recording.  Many artists turn to field recordings for texture, but in these works, the originals are honored in a manner that sets them apart from their peers.

As recently as a decade ago, the cache of popular field recording sources seemed small, restricted…

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Ryan’s Abilities- (learned) Electrokinesis 

User can create, shape and manipulate electricity, a form of energy resulting from the existence of charged particles (such as electrons or protons) which give the user control over electric fields, electric charges, electric currents, electronics, and electromagnetism.

squeeful replied to your post “squeeful replied to your post “squeeful replied to your photoset…”

He could be Iron Mew

True, but I still like the idea of him having a kitteh sidekick-he’s clearly always wanted himself some kittehs, ad this one managed to get the normals free, let the lab animals out, thus killing the evil scientist, disrupt Tony’s shackles by use of static electricity, demonstrating complex knowledge of electrical fields, and she shut down an entire section of the lab by chewing on the right wires. 

Best sidekick ever. She’s an electrical savant kitteh. Called Zero. And she’s paranoid about everyone but him, who she loves, according to the comic. I think he needs her. 

Electricity generating nano-wizards

Quantum dots are an ideal nanolab to study the means to turning heat into electricity. Just as alchemists always dreamed of turning common metal into gold, their 19th century physicist counterparts dreamed of efficiently turning heat into electricity, a field called thermoelectrics. Such scientists had long known that in conducting materials the flow of energy in the form of heat is accompanied by a flow of electrons. What they did not know at the time is that it takes nanometric-scale systems for the flow of charge and heat to reach a level of efficiency that cannot be achieved with larger scale systems.

from Nanotechnology News – ScienceDaily http://ift.tt/1cL51Hf
via IFTTT

Self identity, self development and anything relevant to “who I am” have always been of most importance to me (development in people in general actually aka sociology enthusiast). As we grow, age, travel through time, etc, we go through a kind of evolution. I’m slowly turning into who I want to be, working through complexities and realizing that when things don’t go my way, go another way. I couldn’t even say I’m the same person as I was 3 months ago. Jumping through hoops of fire above tanks of electric eels and fields of quick sand, that has been what life has felt like for some time. I’m proud of myself, for multiple aspects. I’m finally breathing, focusing on my breath, and simply not looking down. Living, one day at a time. Thank fuckin Neptune.

Weird Fact of the Day:
Sharks have 8 senses - sight, smell, hearing, touch, taste, as well as lateral line, pit organs and the ampullae of Lorenzini.

Lateral Line is a sense which allows sharks to detect movements and pressure changes in water.
Pit organs’ exact function has not yet been determined, but a theory is that it allows them to detects currents.
Ampullae of Lorenzini, or ‘electro sense’ allows sharks to detect electric fields.
(Photo belongs to Daniel Botelho)

Follow http://bitch-dont-krill-my-vibe.tumblr.com for more

alexanderthemostlyokay replied to your post: any of yall happen to be physics major…

I’m going to be a physics major. I currently love physics. Maybe I can help?

Alrighty, here is the question: Three charge particles of 3nC, 6nC, and -5nC are at the corners of an equilateral triangle. The sides of the triangle are 8 cm. Find the electric field at the center of the triangle. 

So far I’ve been able to calculate the center of the triangle’s radius. But that’s where my brain stops processing. It doesn’t help that all her examples/the book only deals with TWO particles at a time. I’m sure this is “super easy” but alas I’m a bio major.