Profile picture
Grace/ @RealScientists @realscientists
, 3 tweets, 1 min read Read on Twitter
GOOD MORNING EVERYONE!!!

I’m very excited to curate the account this week! But first...coffee. How are y’all starting/continuing your Sundays?
As my brain slowly comes alive...how does caffeine work?

Well, it acts on a lot of different targets, but to make you feel awake, mostly it blocks receptors for adenosine. Adenosine builds up in your brain when you’re awake/alert, making you drowsy.
Caffeine tricks your brain into thinking it’s not tired by keeping the adenosine from being able to bind to the receptors. If it broke down the adenosine, you would *maybe* never be “too tired for coffee,” but eventually, the adenosine will win and you need to sleep!
Missing some Tweet in this thread?
You can try to force a refresh.

Like this thread? Get email updates or save it to PDF!

Subscribe to Grace/ @RealScientists
Profile picture

Get real-time email alerts when new unrolls are available from this author!

This content may be removed anytime!

Twitter may remove this content at anytime, convert it as a PDF, save and print for later use!

Try unrolling a thread yourself!

how to unroll video

1) Follow Thread Reader App on Twitter so you can easily mention us!

2) Go to a Twitter thread (series of Tweets by the same owner) and mention us with a keyword "unroll" @threadreaderapp unroll

You can practice here first or read more on our help page!

More from @realscientists see all

Profile picture
A thing I am dealing with now is studying cancer in test tubes and watching my father fight cancer in real life.
I know there are many scientist and doctors who experience this very same thing.

It was and remains a watershed moment that knowing more doesnt always mean surviving more.
As someone who treats cancer objectively for most of my waking hours, I attend lecture after lecture. I hear from medical oncologists, epidemiologists who lool at population level cancer outcomes
Read 14 tweets
Profile picture
Today I'd like to talk about jet streams, atmospheric turbulence, and climate change.

Why do we even have jet streams? At any fixed altitude, the north-south temperature difference between equator and pole causes the eastward wind to increase with height (wind shear).
You can check out the current positions and speeds of the jet streams interactively at earth.nullschool.net. (Change height to 250 hPa to move up to the altitudes where they typically blow the fastest.)
Jet streams move around from one day to the next and vary in strength. They play a crucial role in steering weather systems as well as aircraft (which enjoy the tailwinds on eastbound flights, but try to avoid the westbound headwinds).
Read 13 tweets
Profile picture
Why does this climate change impact on phenology matter? Because it means that the regions TODAY that are best suited for the grape varieties planted there may not be the best in the coming decades
So what can we do about? Lots, it turns out.
There is lots of work in genomics, for example, to develop grape varieties that are better able to deal with climate change: ucdavis.edu/news/genomics-…
Read 15 tweets

Related threads

Profile picture
Good morning everyone except fascists and those who defend them! Sorry for the late update -- the audio recap of yesterday's closing arguments in the trial of james alex fields is available here.
the obvious & continuing content warning applies.

soundcloud.com/wtju/the-trial…
the jury will begin deliberating on the verdict today. fields faces ten charges - one count of first degree murder, five counts of aggravated malicious wounding, three counts of malicious wounding, and one count of leaving the scene of an accident.
even if the jury enters that jury room already certain and unanimous, it's a lot of paperwork. if they go through the proper motions, read the jury instructions together, and deliberate on the specific elements of each count individually, it will still take several hours.
Read 8 tweets
Profile picture
Good morning everyone. This is a gentle reminder that the 2017 report from office of the Auditor General of the Federation indicts the @MBuhari admin of monumental corruption in 2016. There are a lot of issues, so let me do a small thread of some of them.
First, more Ministries, Departments & Agencies (MDAs) failed to submit their audit reports in 2015 & 2016 than at any time in Nigeria's history. In 2016, PMB's 1st full yr, almost twice the number of MDAs defaulted than in 2014, GEJ's last full year.
The Auditor General's report showed that FIRS & DPR were overpaid N305.9bn & N531.1bn totalling N837bn for August 2016 ALONE. I have not seen any evidence of refunding these monies to the govt coffers.
Read 8 tweets
Profile picture
Good morning everyone,

This is such an important day I could hardly sleep. I was up in the middle the night thinking about all the survivors stories I read this week. Millions & millions of women who’ve been raped, abused, harassed, intimidated and degraded. I shed a few tears.
I keep coming back to the same thought. The attitude of the Republican Party, of the entrenched corrupt members of power, all these sick (mostly) old (mostly) white men is this:

“Fuck you. We get to abuse you.”

It’s that simple.
When you boil down all the lies and evasions, rationalizations, attacks on character, bad-faith pedantic arguments, they simply do not add up.

It’s just a melee of of half-truths and brutal attacks.
Read 7 tweets
Profile picture
Good morning sports fans it's day two of the #cpc18. I'm not there yet, but my coverage is starting early thanks to internet feelers I put out yesterday. I'm hearing that axing supply management has been scheduled as the last policy vote in it's session.
And that because it's the last vote in the session party members are going to try and run the clock on the policy session so it never comes to a vote, and therefore is shot down without being explicitly voted against.
I'll try and chase that down once I'm actually there.
Read 201 tweets
Profile picture
Good morning, everyone. I'd like to share a few personal stories about why people of color bristle at folks who show sympathy (just a little bit) to racists. I won't be naming names as it is not necessary and I want this to be constructive.

I hope we can all learn from this.
Most of you know I travel to eastern Europe often and I have lived in the region for more than 4 years, with Russia, Ukraine, Georgia and other ex-Soviet states being my main stumping grounds. I have also met a lot of immigrants from there who have moved here.
As a black American who travels to eastern Europe often and writes about race for a living, I can tell you that, for example, Jewish people, do indeed have a unique story of escaping totalitarian regimes that tolerate anti-semitism and seek better lives here in the US.
Read 19 tweets
Profile picture
Good morning everyone and WOW. Thanks for the follows. I may or may not have legit freaked out when my phone exploded yesterday.

I’m excited to be able to contribute something of value to you. Thanks again to @ericgarland for putting me with some like minded-peeps.
So I know what I put up yesterday is definitely scary, and enraging. But I want you to know that there are two sides to the coin. These tactics, these active measures can also be used for good.
The constant bombardment of horror from this administration is partly from his obvious psychological problems, partly from their ineptitude, and partly by design. Authoritarian regimes seek to break the spirit of the people living under their rule.
Read 12 tweets

Trending hashtags

#PauHana #GrabYourWallet #SexyHistory #8Committee #TheStormIsHere #FlagDisrespect2017 #UequalsU #TeamPatriot #WAD2018 #PerryWhiteLogic #EndHIVstigma #EmbraceUnity #MarthasSpaghetti #VoteDEM2018 #GoogleIt #TrumpsAmerica #HIV #cpc18 #BlockParty500 #PAMFAM #repealthe8th #CantPassItOn #lives2018 #TeamNutShellReport #TrumpRussia

Did Thread Reader help you today?

Support us! We are indie developers!

This site is made by just three indie developers on a laptop doing marketing, support and development! Read more about the story.

Become a Premium Member and get exclusive features!

Premium member ($3.00/month or $30.00/year)

Too expensive? Make a small donation by buying us coffee ($5) or help with server cost ($10)

Donate via Paypal Become our Patreon

Thank you for your support!