Tweetorial Collection

TechTweets has hand-picked a collection of tweetorials on topics ranging from biology to linguistics to history that we feel are useful for learning how to write tweetorials.

We've also annotated some exemplary tweetorials to shed light on what makes some of the best tweetorials stand out. Annotated tweetorials have purple borders and are marked with a pen icon:

means a tweetorial is annotated.

Tweetorial Topics

California Wildfires


I’ve been watched the landscape of my childhood burn with an aching heart, and wondering how much climate change is to blame. Turns out human activity is a major driver of California’s wildfires, but not just in the ways you might imagine. (pic: Noah Berger) 1/10

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Dung Beetle Navigation


So today I was talking about evolution being amazing and literally every animal being awesome and I'm told the dung beetle isn't. Thread 👇

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Why Enterprise Software Sucks


My university just announced that it’s dumping Blackboard, and there was much rejoicing. Why is Blackboard universally reviled? There’s a standard story of why "enterprise software" sucks. If you’ll bear with me, I think this is best appreciated by talking about… baby clothes!

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Why Do Fingertips Get Wrinkly in the Bath?


"Why do my fingers get all wrinkly when I take a bath?” This was the question my 3-year-old daughter asked me recently after bath time.

I thought for a minute, then realized I didn't have a clue.

The explanation is so much cooler than I had expected...

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African Empires and Colonization


I always find the “Africa is better off from the results of colonization” arguments amusing. What do people think happened with African empires & their European counterparts prior to colonization? Perhaps a history lesson is in order. Thread. 1/17

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Our Visual System and Saccades


You want to know something about how bullshit insane our brains are?
OK, so there's a physical problem with our eyes: We move them in short fast bursts called "saccades", right? very quick, synchronized movements.
The only problem is: they go all blurry and useless during this

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Why is Median Age of Covid Cases Dropping?



What does it mean that the median age of new cases is dropping in some areas? I see three possible explanations, not all good. A thread on how to distinguish between them. 1/10

(Figure h/t @ScottGottliebMD)

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What is Opposition Research


1. All this talk about opposition research tonight is driving me nuts because so many people are getting it wrong (not Kyle). This is an area I know well, I got my training as a oppo researcher many years ago, I have also commissioned, disseminated, and received a ton of research

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Urban Archaeology in Kingston


Geeky thread warning. Or, if you’re like me, a cool bit of 20th Century urban archaeology. Check out this shop in Kingston. What’s unusual about it (aside from its no-doubt-excellent nails service)?

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Benefits of Basic Science


So much anti-science crap on Twitter this morning. Not just climate change denial stuff but people against wasting money on basic research

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Steroids and White Blood Cell Counts


How do steroids cause an increase in the white blood cell (WBC) count (i.e., leukocytosis)?

And, how do steroids tamp down inflammation if it appears that there are more WBCs in the blood after they are administered?

Seems like a paradox in need of a thread.

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Unpacking Snowden's Actions


With @Snowden book coming out, I'm hearing multiple respected people in the industry say "the domestic programs were wrong, I just don't agree with how he released the data." I get where these people are coming from, but let's examine why this is a hollow argument. 1/

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Why Preorder Books


You have probably heard me stating that preordering a book from an independent bookseller is the most impactful thing you can do if you're going to buy an author's book. Lately some of you wonderful people have asked for more detail, so I thought I'd explain! [THREAD]

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Why College Rankings are Crap


I've been thinking about this for a day and a half now. And here's why. This game exists because a metric (selectivity) exists. And metric exists because ... once upon a time a newsmagazine decided they could make some good side money ranking colleges.

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Genetics, Intelligence, and Ethnicity


Yesterday I did another bit of twitter back and forth with someone with a strong belief that there strong biological differences between ethnic groups - a particular focus being intelligence - and I just want to lay out why I spend time on this on twitter

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Data Analysis Alone is Not Enough


AS A STATISTICIAN, I respect science expertise because I need it to do my job right. In the early days of the pandemic, I saw debate develop between those advocating we listen to experts and those who felt we should listen to the data. This is a false dichotomy, let me say why...

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Social Construction of Crime


Something I've learned while in law school is about the social construction of crime. I work in a legal clinic on wage theft cases, where employers have "improperly paid" workers by not paying, paying below min wage, withholding overtime, paid sick time, etc. 1/

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Are Jellyfish Immortal?


I've got some shocking news for you:
2) The oldest jellies I know are NEARLY 100 YEARS & COUNTING
3) Scientists are studying if they live forever but there's one BIG problem...[a thread]

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Biological Sex and Gender


Friendly neighborhood biologist here. I see a lot of people are talking about biological sexes and gender right now. Lots of folks make biological sex sex seem really simple. Well, since it’s so simple, let’s find the biological roots, shall we? Let’s talk about sex...[a thread]

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Everything You Need to Know About 2+2=5


EVERYTHING YOU NEED TO KNOW ABOUT "2+2=5". As a former mathematician, I have things to say. 1/🧵

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The Solar Neutrino Problem


one of the coolest particles in the Universe is invisible.

it’s super low mass.

100 trillion pass through your body every single moment.

it travels at nearly the speed of light.

it has no electric charge.

it flummoxed scientists for decades.

𝘁𝗵𝗲 𝗻𝗲𝘂𝘁𝗿𝗶𝗻𝗼.

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History of the Word "Ebonics"


The only reason any of us cringe at "ebonics" is bc we grew up with news media telling us it was bad after the Oakland controversy. A short history thread. 1/

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Is NASA Detecting Parallel Universes?


OK, so, I've seen a lot of the "NASA detects parallel universe" stuff going around

I've spent the last ~2 years of grad school investigating these detections, and wanted to provide a bit of background and clarification


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Was Beethoven Black?


Hi gang! I'm not on twitter much right now, but because several of you have asked for my take on the question, "Was Beethoven Black?"

Here's my answer as a scholar who writes about black musicians in Europe for a living:


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Menstrual Clots


[Thread]: Menstrual Clots - What are they all about? This thread will explain the large, dark clumps jelly with your period. It might be surprising to see a thick glob of menstrual blood, but, in most cases, blood clots are a natural part of menstruation. (Spongebob Edition)

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Nitrates in Rocket Salad


There's been a story in a UK tabloid (that I won't name), and @BBCRadio4 of all places; that #rocket #salad causes #cancer due to high levels of #nitrates in the leaves. Here's my take, and what's wrong with the thinking behind it.

A thread.


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Why Millionaires Don't "Earn" Their Money



So, let's imagine I'm a business owner and you come to me looking for a job.

We talk about your the terms of your employment and eventually we come to the big question:

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Why "States' Rights" Wasn't the Cause of the Civil War


1. Here's a short thought experiment that might help students or others understand why historians today reject "states' rights" as the cause of the Civil War. Imagine that 150 years from now, someone tells you that conservatives in 2020 were defenders of states' rights ...

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Why "Public Housing" Became Sigmatized


just wanna talk real quick about how we get to "public housing" as a highly stigmatized, not-so-subtle dog whistle for "low-income Black people," instead of what it could be-- a public good benefitting people of all backgrounds--in the context of Chicago history.

[a lil thread]

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Banking 101


Banking 101

Banks are a critical feature of the modern economy. But most people don't understand how modern banking actually works.

Spoiler Alert: It may shock you.

Here's Banking 101!


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Hash Functions


Hash Functions are a key concept in computer science, cryptography, and yes #bitcoin.

It's impossible to explain how bitcoin works without first understanding what a Hash is.

If you'd like to expand your background knowledge, read on 👇

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Colleges and Coronavirus


1/Let's talk about colleges, and how screwed they are.

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MSG isn't Bad for You


THREAD: why the notion that MSG is bad for you is a racist hoax and needlessly deprived us of so much deliciousness

so MSG was first isolated in 1908 by Japanese chemist Kikunae Ikeda, who also coined the term "umami" for the flavor 1/?

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Gender Segregation in Medical Specialties


What happens when certain types of medical work become synonymous with women’s work?

This excellent paper by @ElainePelley & @Molly_Carnes explores the trend of ⬆️gender segregation in medical specialties and downstream impacts.

#WomenInMedicine THREAD

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Pronoun Usage


I really hate how transness is always flattened and reduced so that the cis can understand it.

The most current iteration of it is cis people being told that "they/them" are THE "nonbinary pronouns".

It don't work like that lol

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2020 Belarus Election



Today is the day of presidential election in my native Belarus. It is the 6th election in Belarusian history. Only 1994 election was deemed free and fair, and votes in 2001, 2006, 2010 and 2015 were marred by electoral fraud and government repression.


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Wastewater Testing for Covid


Some big news out of the University of Arizona (@uarizona):

UA scientists & staff found a coronavirus outbreak on campus *before it happened* — and seem to have snuffed it out.

How in the world do you do that?

You use wastewater testing.

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Dr. Nancy Conn & Typhoid


Summer 1970: a rare form of typhoid is infecting people in Edinburgh. Dr Nancy Conn, a bacteriologist at Western General, finds the source and prevents a major outbreak with detective work and sanitary towels.

A thread on one of Scotland's unsung #WomenInSTEM


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Algorithmic Grading


Here's your heartbreaking algorithmic cruelty story of the week: UC Riverside history prof @DanaJSimmons has a son who's just started junior high and loves his history teacher:


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Is Covid Testing Too Sensitive?


NEW: All these months into the pandemic, we may have been testing the wrong way. Data from some state labs suggest up to 90% (!!) of people who get a positive result are no longer contagious and don’t need to isolate.

Strap in, this is important. 1/x

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Neuroscience and Racism


"You should stick to the science"

Aight, here's a thread about the ways neuroscience was used to justify blatant racism.

References at the end.

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What if Earth had no moon?


What if Earth had no moon? ✖️🌕

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What If You Hit a "Ceiling" in Math?


WHAT TO DO WHEN YOU HIT A "CEILING" IN LEARNING MATH? Somebody asked me this question recently. I defer to the math education experts but as a Harvard student in a mathematical field I do know a little about learning math. 🧵

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Why Windows 95 was Cool


25 years ago today, Microsoft released Windows 95. Lots of other people can talk about why it was technologically interesting, but I want to share a bit about why it was so *culturally* interesting.

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Why Isn't Correlation Causation?


Statisticians like me say CORRELATION ISN'T CAUSATION but that's not the whole story.

There are at least FOUR different scenarios!

A thread. 🧵

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When Will We Get to Herd Immunity?


1/ Q: When will we get to herd immunity?

A: When we get a vaccine & lots of people have received it; or else, a very long time from now.

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