#electromagnetic spectrum

[requindreams]

she electro on my magnet til I spectrum

[joehills]

I just hit a huge milestone designing my giant pinball machine in Minecraft: the playfield is all laid out!

I'm calling the game Deep Field, and there's five primary objectives based on hitting different shots representing bands of the electromagnetic spectrum.

IR: rollover switches Visible light: pop bumpers UV: captive ball X-rays: Drop targets Gamma rays: spinner

Also, a kinetic sling disc to light locks for Pluto Multiball!

[inspired-lesson-plans]

Science, High School, Optics

Do Now:

Electromagnetic Radiation exists on a spectrum, just like gender. Indeed, it can be divided into three segments (seen left to right in the image below)

Infrared - low energy, large wavelength (radio, microwave, heat)

Visible Light - the very short range of wavelengths that human eye cells can detect, (red, orange, yellow, green, blue, violet)

Ultraviolet - high energy, short wavelength (X-ray, gamma rays, and UV light obviously)

But which gender is more like which segment of the EM spectrum? Consider these three possible models.

1.

2.

3.

Which is your favorite model of the Electromagnetic Gender Spectrum? (be sure to explain your choice)

IR=male, UV=female, 🌈=queer

IR=female, UV=male, 🌈=queer

IR+UV=queer, 🟥=masc, 🟦=fem

Voting ended onFeb 8

Example arguments below the cut

In our society, masculinity is seen as the default. And since heat, radio, and cosmic background radiation are all part of the IR spectrum, it only makes sense to assign masculinity as infrared.

Women have always been treated as invisible for most of the history of the civilized world. So there's no way that femininity could be part of the visible light spectrum. It feels like the only time women are ever made visible is when they can fail to do something, much like x-rays passing through soft tissue but failing to pass through bone. Thus, one might assign femininity to the ultraviolet Spectrum.

Toxic masculinity is a serious problem, and gamma rays are the most damaging of all kinds of light, So it makes sense to assign masculinity to the ultraviolet Spectrum.

Queer is an all-encompassing title that was invisible to our society up until very recent times. It's only in the Advent of modern technology that things like radio and microwave and x-ray were even understood to be useful, and this is historically about the same time that gender criticism and transsexuality were being explored in the west. And since men and women so often choose to fall into such a narrow array of roles for themselves, it only makes sense to assign the masculine and feminine genders each to half of the visible light spectrum and allow the queer gender identities to have all the rest of it.

There are so many ways of expressing masculinity in so many ways of expressing femininity that one should not try to encapsulate them within the narrow band of the visible light spectrum. They should each be allowed to be expansive.

↑ nah bro, there's only like three kinds of male: red, orange, and maybe yellow if you're a beta cuck.

[timnehtopia]

Good evening!! Today I'm going over the regions of the electromagnetic spectrum.

The electromagnetic spectrum is the entire range of electromagnetic radiation. It is organized by wavelength and frequency.

Some quick vocab:

Nanometer(nm)- a measurement of length in the metric system that is 1 billionth of a meter. (10^9m)

Ionizing radiation –radiation powerful enough to knock an electron away from an atom. This can change the chemical composition of material that it interacts with.

The EM spectrum is separated into several different categories which each have their own properties.

Note: The wavelengths below are just approximations.

Radio waves(discovered in 1888)

Wavelengths >1 mm

Longest wavelength/Low frequency/low energy

Used in things like am/fm radio, Mobile phones, and wireless computer networks.

Microwaves(predicted in 1864 by James Clark Maxwell, discovered in 1888 by Heinrich Hertz)

Wavelengths from 10^6 nm - 1 m

Used in microwaves and things such as wi-Fi or cell phone communications.

Infrared(discovered in 1800 by William Herschel)

Wavelengths from 780 – 1,000,000 nm

Invisible to the human eye, but can be detected by humans as heat. Can be used in things like thermal imaging to capture heat signatures, or TV remotes.

Visible light

Wavelengths between 380 – 700 nm

The only part of the electromagnetic spectrum that is visible to us.

Wavelengths that help us to see colors. We also use visible light to transmit Data through optical fibers.

Ultraviolet(discovered in 1801 by Johann Willhelm Ritter)

Wavelengths between 100 - 400 nm

Divided into three regions called near UV, for UV, and extreme UV. The former being closest to visible light.

Energy from this category onward can be harmful to humans, as it could cause ionization.

X-rays(discovered in 1895 by Willhelm Conrad Roentgen)

Wavelengths from 0.01 – 10 nm

Used for a medical imaging and cancer treatments. Doctors use invisible electromagnetic beams that pass through the body to create an image of bones, organs and internal tissues.

Gamma rays(discovered in 1900 by Paul Villard)

Wavelengths <0.01nm

Shortest wavelength> High frequency> High energy

Gamma ray bursts occur in space and can release more energy than our sun can in its entire lifetime.

Gamma rays can also be used in cancer treatments, or for sterilization.

Fun fact: The sun emits light from the whole electromagnetic spectrum.

That’s all for today. See ya tomorrow!

[otter502]

Random bad idea:

What if you genetically modified a bacteria to produce saw filters (that somehow work even though they're made of carbon based proteins instead of copper??) and then can take it in as an input. Like could you remote control certain behavior?

Also what if you designed a general purpose bacterial which would create any protein chain you could need and outputs it into a liquid (with a way for you to extract it).

Tldr, what if you had a liquid that just, emitted radio waves... Signing bacteria! (Aka bacteria / liquid that jams signals around it)

I just get weird ideas sometimes and decide screw it what if I make it more fantasy and throw it into a worldbuilding project

[toomanypossumsinthistrenchcoat]

That phone - yes, the one in your hand, or perhaps your pocket - works by radio waves.

Yes, I'm back with more ramblings about all the ways humans use the electromagnetic spectrum! Because turns out, you're rather reliant on it.

Phones - mobile phones, anyway - use radio waves to connect to each other (it's more complicated than direct phone-to-phone communication but the radio waves are the important part today!). Your wifi is also radio waves. GPS is also radio waves. I probably don't even need to look it up to tell you a radio is radio waves, but I did and they do.

So, humans communicate with each other and locate themselves by waving, in a way. I like that.

If I get stuff wrong, please correct me politely - I don't know very much yet, but I love hearing cool facts! Thank you -Gentle

[katiajewelbox]

Happy Saint Patrick’s Day! Did you remember to wear green today? In the USA, the colour green is associated with this holiday celebrating Irish heritage and culture. There’s an odd American tradition that wearing green makes a human invisible to leprechauns and that if you aren’t wearing green leprechauns will pinch you!

Plants wear green on Saint Patrick’s Day as well as the other 364 days of the year. Their green colour comes from the plant chemical cholorophyll. This green pigment is found in nearly all plants as well as in green algae and cyanobacteria, where the pigment is contained in structures inside the cells called chloroplasts. We see chlorophyll as green because the pigment absorbs blue and red light on the electromagnetic spectrum. There are two kinds of chlorophyll - chlorophyll a which absorbs blue and red light and chlorophyll b which specialises in absorbing high energy blue light wavelengths. Both cholorophylls absorb less green light wavelengths and reflect the green light portion of the electromagnetic spectrum, creating the effect of green colour in plants and algae.

Why does chlorophyll absorb certain wavelengths of light on the electromagnetic spectrum? The energy absorbed via the green pigment powers the process of photosynthesis, in which carbon dioxide and water are converted into oxygen and glucose molecules. Glucose molecules are a simple sugar that powers the metabolic processes of the plant while oxygen, which we and many other living being depend upon for survival, is the by product from the plants’ point of view.

Considering the importance of cholorophyll to life on Earth, green is an important colour for every day of the year - not just Saint Patrick’s Day.

#saintpatricksday#green#chlorophyll#photosynthesis#electromagneticspectrum#science#plants#plantbiology#biology#sciencefacts#sciencecommunication#katia_plantscientist

[bootleg-nessie]

Bitches call me electromagnetic the way I’m on the spectrum