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Aerogel (also called 'frozen smoke' because of its hazy blue appearance), is a truly remarkable material.
It is the lightest and lowest-density solid known to exist, and holds an unbelievable 15 entries in the Guinness Book of World Records, including best insulator and lowest density solid.
Aerogel is composed of 99.8% air and is chemically similar to ordinary glass.

Being the world's lightest known solid, it weighs only three times that of air.

When handled, Aerogel feels like a very light, hard foam. Being chemically similar to glass, it also happens to shatter like glass, yet is incredibly strong structurally, and can support thousands of times its own weight. Theoretically, a block weighing less than a pound could support a weight of half a ton.
Due to its microstructure, Aerogel is a powerful desiccant, rapidly absorbing any moisture in your fingertips when held. This usually leaves some dry spots on the skin that disappear in a short time.
Aerogel's true strength is its incredible insulating properties. It negates just about any kind of
energy transfer - thermal, electrical or acoustic.
A one-inch thick Aerogel window has the same insulation value as 15 panes of glass and trapped air - which means a conventional window would have to be ten-inches thick to equal a one-inch thick Aerogel window.

Aerogel's density is just 3 milligrams per cubic centimeter.
Its melting point is 2,200 degrees F (1,200 degrees C).

A large panel of Aerogel was most recently used by NASA in the Stardust mission, which successfully collected collect comet & interstellar dust samples & returned them to Earth. Previously, it was used in the Mars Pathfinder Rover to insulate its components from the large temperature swings on Mars.
Areogel is some expensive shit, but aerogel is cool as hell.
Aerogel by Amy D January 23, 2007
Words you can keep

Aerogender 

Aerogender is a xenogender which changes based on the setting or atmosphere one's in. This can refer to things like temperature, weather, time of day, time of year, elevation, etc. It can also refer to a more metaphorical atmosphere, such as one's level of comfort, emotions, or who they're around.

(Definition sourced from the LGBTQIA+ wiki on fandom)
Person 1: I’m aerogender! Please use he/him for me on a sunny day, she/her on a rainy day, and they/them at any other time!
Person 2: Cool! It is currently sunny, so I will use he/him for the time being. If it rains tomorrow, I will use she/her!
Aerogender by Rosy Cherry March 7, 2023
Related Words

Aerogender 

•A person identifying as Aerogender has 1 to no gender limit. Their birth gender is irrelevant to them, and they shift around between the gender they feel, most of the time feel more than one, this identification is similar to Omnigender and Omnigenderfluid. Their style of clothing may also shift around with their current feeling of gender, Such as one day they may wear more boyish clothing, one day they may where feminine clothing, or others.

•Other forms of Aerogender: Aero-masculine (Feeling of all masculine genders, fluidly), Aero-Feminine (Feeling of all feminine genders, fluidly), Aero-Neutral (feeling of a neutral genders such as Agender, and Gender-neutral)
Person A: “yo, why does that person over there always dress in different clothing every day.”

Person B: “Perhaps they're Aerogender. If I were you I wouldn't judge.”
Aerogender by Screp March 26, 2022

Aerogeek 

A person who is hopelessly obsessed with the rock band Aerosmith.

"I can't believe that Aerogeek named his firstborn child 'Cryincrazy Amazacrazy'."
Aerogeek by S. Michael Simms October 18, 2007

aerogeek 

Someone who likes planes/aviation/etc. to such an extent that they feud with their rivals (often violently, but more often it's just a see-who-can-mentally-warp-the-other thing) in their furious attempt to take over the world.
EX1: Ah, you're such an aerogeek!

EX2: MAYDAY! Mortal aerogeek combat!!!

ærogender 

The bullshit gender you make up when you want to try to fit in with your bisexual friends
Karen, guess what!!!

Karen: what?

I am now ærogender!!!!!!

KaREN: dude do you even know what that is
ærogender by Luigi836 August 7, 2019

Aerogenes 

A word Mr. Taylor made up
Aerogenes are fake.
Aerogenes by Tp ll October 12, 2019
More from Urban Dictionary
1. Meaning nasty, sexy, filthy. Popularized by Christina Aguilera.

2. Used usally as a close friend in hip-hop slang.
1. Wanna get dirrty
It's about time that I came to start the party Sweat drippin' over my body
Dancin' gettin' just a little naughty

2. Sup Dirrty? Haven't seen you in a while.
dirrty by Minty November 30, 2003
Word of the Day on September 3, 2026

Coyote Ugly

1. Place

The Bar came before the movie. It is an awesome bar where the girls know how to party and make you feel okay about giving up your money, drawers, bras, and dignity.

2. Movie

A story about a Jersey girl following her dreams, aided by working at this bar in New York.

3. Situation/Person/Decision

See other definitions - waking up next to someone so ugly you'd rather chew your arm off than wake them up.
1. Yo, Coyote Ugly is my favorite bar! I got whipped, stripped, drunk, and danced on the bar all before 7 o'clock!

2. Hey did you see Coyote Ugly? It actually has a plot!

3. Ugg I woke up to Coyote Ugly this morning!
Coyote Ugly by jerseycountry March 8, 2009
Word of the Day on September 2, 2026

Literally 1984 

Used in response for when someone promotes/advocates an event or idea that is perceived to support "too much" authority and/or government control.

Often used jokingly as a over-exaggeration in political talk.

Can also be used in response to a ban or mute in a forum site or online chat.
Steve: I think that the government should regulate businesses more
Bob: Literally 1984!

--User1 has been permantly banned--
User2: You cant ban my friend like that! Literally 1984!
Literally 1984 by ke1 July 7, 2021
Word of the Day on September 1, 2026

Back when I lived in upstate new york 

A meaningless, unimpressive, self-serving introduction. An indicator that the story about to be shared will be pointless and dumb.
Back when I lived in upstate new york, I also had to park on the street - on two occasions, we got enough snow, mixed with just the right plowing, that my car was lifted off the ground from so much snow being jammed underneath it.
Word of the Day on August 31, 2026
Acronym, meaning Too Long Didn't Understand
Similar to TLDR
Sister: This meeting was to discuss the rough draft of my essay, where we discussed the subsidiary questions I added in my rough draft. We also discussed the relationship between my main title and the real-life situations I chose to use in my essay. We discussed the structure of my essay as well, specifically the Math AOK section and how it relates to the contradiction of the title. This second meeting was particularly helpful in discussing the implications of my essay claims and how to apply the title across various areas of knowledge. There were many sections of the essay that could have been cut down in wordiness and the ways of knowing required further and more in-depth analysis.

Me: Woah! TLDU!
TLDU by L-Evans January 14, 2019
Word of the Day on August 30, 2026
the act of having anonymous sexual encounters with other men in public toilets.
Cottaging by greeef April 24, 2003
Word of the Day on August 29, 2026
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