Happy Holidays From The Holiday Boar

Hellbenders (Cryptobranchus alleganiensis), family Cryptobranchidae, eastern United States

The smallest of the "Giant Salamanders" in the family Cryptobranchidae, this aquatic salamander is nonetheless quite large, growing to a length of up to 29 inches.

While only considered "Vulnerable" nationally, this species is considered endangered in some states.

photographs by David Herasimtschuk

If you live in the USA and you're pleading for donations to pay your rent, bills, or get food then dial 211! Please dial 211 before the last minute!

It's a toll free service with people who will help you find programs in your community to pay those bills, find food, and find housing! They will give you numbers to call so you can get help.

It is not 100% foolproof. Their job is to direct you to a program they believe will help your current issue, but it's still a step up from praying random strangers online will give you enough cash before a deadline! The added benefit of these community programs, which get funded by the local government most of the time, is if there are more people using them then they can get more money to help more people.

You're not taking resources from other people if you use your community services. Your taxes pay for them. Use them.

Dial 211 first to see if they can help, and if for some reason they can't, then make your donation posts!

https://www.211.org/

Caspar David Friedrich (German, 1774–1840)

"Inside the Forest in the Moonlight", 1830.

Oil on Canvas, 70.5 × 49 cm.

Alte Nationalgalerie, Berlin, Germany.

If you have seen Ted Lasso you may have noticed these unusual microphones used by the football commentators.

Despite being a microphone nerd, I had never seen anything like them before. So I decided to go into research mode and discovered these microphones are quite fascinating.

They are called "Lip-Ribbon" or "Commentator's" microphones.

They were specially designed by the BBC in the 1950s for extremely noisy environments. Soccer Football stadiums have peaked at 130 decibels so they needed something that would not get overwhelmed in that circumstance.

They use several very clever techniques to make sure only the voice is picked up and everything else is rejected.

First, they use a bidirectional polar pattern.

That means it will accept sound from two directions, but reject any sound coming in from the sides. And since the diaphragm is only exposed on one side, that helps reject sound coming from the other direction.

Next, the microphone is not very sensitive so you literally have to hold it up to your lips (hence "lip-ribbon") in order for your voice to have enough sound energy to vibrate the diaphragm.

That top part rests directly on your lip and there is a little pop filter to keep your plosives in check.

There is a built-in high pass filter so it rejects any sound below the frequencies typically used by the human voice.

But my favorite trick... a labyrinthian internal baffle system.

(I found a diagram of this when researching but then I lost the tab and I cannot find it again. So you'll just have to accept this crude photoshop I did in 30 seconds to help you understand.)

Sound is energy. And that energy is diminished the farther it travels. The inverse square law for sound states that the intensity of sound decreases by approximately 6 dB for each doubling of distance from the sound source. Sound also diminishes when it reflects off a surface.

That is a very sciency way of saying... make sounds go through a tiny maze and only sounds with the most energy will prevail.

So if you have your lip pressed up against the front of the mic, your voice's energy will make it through the labyrinth of baffles without issue. But every other sound in the stadium will have a much harder time getting through.

These mics may even be vuvuzela-proof.

And even more amazing... this microphone was designed in the 1950s and they have yet to create anything better for incredibly noisy environments.

Isn't that neat?

I think it is neat.

Executive chef at a top Thai restaurant tells Gordon Ramsay that his Pad Thai is trash [x]

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HAPPY SHREW YEAR

disclaimer: I am east asian. if anyone who is not white sees anything wrong with my phrasing, inaccuracies, or insensitivity, or something I missed, please feel free to add on. I'm just one person with one perspective; none of what I say should be taken as The Singular way to draw an Asian character. if you havent done so already, please take the effort to expand your view of Asian culture outside this one tutorial.

if a white person reblogs this and adds something stupid I'm going to bite and kick you like a wild animal