waddup @chillyegg - Tumblr Blog

i told my friend’s dad that he was hot (it was in context with the conversation, he was complaining that he was feeling old, etc), and he said a very genuine thank you and the conversation moved on to other topic, my friend was now talking about something else entirely when his dad goes

“i think if i were born in your generation i might have been bisexual”

and friend got kinda mad at me lmao

that-twink-over-there

Fuck his dad

Fuck his dad

Fuck his dad

Fuck his dad

Is anyone here russian

officialbabymetal

i am

relelvance

Have you considered taking your time

officialbabymetal

Take my time with what

relelvance

Russian sounds like rushing a little

officialbabymetal

Ohhhhh now that you mention it it does. Good stuff!

relelvance

teathattast

we slidin

urbanfantasyinspiration

At that point he’s a passenger too

luulapants

Happy we slidin season to all who observe

pseudomantis

gothicprep

heartening saga honestly

vague-humanoid

Police have arrested three key organizers supporting people protesting Atlanta's proposed police and fire training center, which opponents c

@ubernegro @nerdymouse @antifaspiderman

radiofreederry

This is counterinsurgency in action. It gets uglier from here.

maaarine

Mystery of why Roman buildings have survived so long has been unraveled, scientists say (Katie Hunt, CNN, Jan 06 2023)

“Roman concrete, in many cases, has proven to be longer-lasting than its modern equivalent, which can deteriorate within decades.

Now, scientists behind a new study say they have uncovered the mystery ingredient that allowed the Romans to make their construction material so durable and build elaborate structures in challenging places such as docks, sewers and earthquake zones.

The study team, including researchers from the United States, Italy and Switzerland, analyzed 2,000-year-old concrete samples that were taken from a city wall at the archaeological site of Privernum, in central Italy, and are similar in composition to other concrete found throughout the Roman Empire.

They found that white chunks in the concrete, referred to as lime clasts, gave the concrete the ability to heal cracks that formed over time.

The white chunks previously had been overlooked as evidence of sloppy mixing or poor-quality raw material.

“For me, it was really difficult to believe that ancient Roman (engineers) would not do a good job because they really made careful effort when choosing and processing materials,” said study author Admir Masic, an associate professor of civil and environmental engineering at the Massachusetts Institute of Technology. (…)

Additional analysis of the concrete showed that the lime clasts formed at extreme temperatures expected from the use of quicklime, and “hot mixing” was key to the concrete’s durable nature.

“The benefits of hot mixing are twofold,” Masic said in a news release.

“First, when the overall concrete is heated to high temperatures, it allows chemistries that are not possible if you only used slaked lime, producing high-temperature-associated compounds that would not otherwise form.

Second, this increased temperature significantly reduces curing and setting times since all the reactions are accelerated, allowing for much faster construction.”

To investigate whether the lime clasts were responsible for Roman concrete’s apparent ability to repair itself, the team conducted an experiment.

They made two samples of concrete, one following Roman formulations and the other made to modern standards, and deliberately cracked them.

After two weeks, water could not flow through the concrete made with a Roman recipe, whereas it passed right through the chunk of concrete made without quicklime.

Their findings suggest that the lime clasts can dissolve into cracks and recrystallize after exposure to water, healing cracks created by weathering before they spread.

The researchers said this self-healing potential could pave the way to producing more long-lasting, and thus more sustainable, modern concrete.

Such a move would reduce concrete’s carbon footprint, which accounts for up to 8% of global greenhouse gas emissions, according to the study.

For many years, researchers had thought that volcanic ash from the area of Pozzuoli, on the Bay of Naples, was what made Roman concrete so strong.

This kind of ash was transported across the vast Roman empire to be used in construction, and was described as a key ingredient for concrete in accounts by architects and historians at the time.

Masic said that both components are important, but lime was overlooked in the past.”

findingfeather

Note that working with hot lime is more dangerous and difficult than working with slaked lime; it requires more skill and prep and has much higher risks in a preindustrial situation.

This is not so much relevant for potential modern things (we have lots of ways to counter that) but I would suspect has something to do with it falling out of use as the heavy duty industrial knowledge base and technological base eroded in the late Empire, especially in the west. As the article notes, the WRITTEN recipes imply slaked lime, so the use of hot lime might well have been a craft secret maintained orally; as Rome’s construction tapered off when the empire hit its hard times, you very possibly get those chains of knowledge broken and lost.

Or you’ve got one guy on the build who knows how to do it but decides it’s too risky without six other trained guys. And after all slaked lime WORKS, it just doesn’t work quite as well. So the industry norm shifts as things get forgotten, not necessarily all at once, but because you need just a bit more of a broad system to maintain them.

brmanso27

Humans are awesome

ladydisdain81

Alien 1: “So you see, this is why we do not provoke the humans.”

Alien 2: “Yes, this is an insightful battle simulation training recording.”

Alien 1: “You misunderstand. The humans are not battle training. They are doing those things for entertainment only. For fun.”

Alien 2: “…What?… for entertain… Even the human young?!”

Alien 1: “Yes.”

Alien 2: “I… I understand now.”

stuffandatherstuff

This is awsome holy fuck

midnight-spectrum-again

Woah

surohsopsisofclouds

*Stares at the people flying* I Yearn

fuck-it-i-wont-respond

This is my anxiety video 2.0

bumblebee-and-tea

All my wobbly joints are screaming in horror watching this

slangtasy

“Gay sex life, unlike straight sex life, is never a private matter. When a man and a woman walk hand in hand, it is their love that they make public. When two men walk hand in hand, it is their sex life that they make public… Our words are acts; our privacy is public. This reality stems from the nature of homophobia.”

—

Rabbi Steven Greenberg

“Wrestling with G-d and Men: Homosexuality in the Jewish Tradition” (2004)

ofthefog-deactivated20241127

maybeiwasserious

lizluvscupcakes

Well, Horny Hand Henry, if nails is what you want, nails is what you’ll get

oomles

*sighs and brings out this image for the millionth tine*

yeahiwasintheshit

*sighs and brings out this picture for the millionth time*

tv--obsessions-deactivated20160

I’M SCREAMING

afronerdism

Stop moralizing Covid. Getting Covid isn’t a moral failure it’s a systemic one. So it’s not your fault, no not even if you got it while you were out enjoying yourself. You haven’t failed some sort of morality test if you go out or see your family for Christmas. Wear your masks and do your best. It’s been a hard 2 years. I wish health and safety for all of us this Christmas. May we all make it to 2022 and beyond.