Matthew Cushman
@astragalus.bsky.social
Adjunct math prof at Hunter College in NYC. Lefty. Kindness is the only thing that matters.
Reposted by Matthew Cushman
mad king moment
from the PBS Newshour correspondent
from the PBS Newshour correspondent
![NEW: @potus letter to @jonasgahrstore links @NobelPrize to Greenland, reiterates threats, and is forwarded by the NSC staff to multiple European ambassadors in Washington. I obtained the text from multiple officials:
Dear Ambassador:
President Trump has asked that the following message, shared with Prime Minister Jonas Gahr Støre, be forwarded to your [named head of government/state]
“Dear Jonas: Considering your Country decided not to give me the Nobel Peace Prize for having stopped 8 Wars PLUS, I no longer feel an obligation to think purely of Peace, although it will always be predominant, but can now think about what is good and proper for the United States of America. Denmark cannot protect that land from Russia or China, and why do they have a “right of ownership” anyway? There are no written documents, it’s only that a boat landed there hundreds of years ago, but we had boats landing there, also. I have done more for NATO than any other person since its founding, and now, NATO should do something for the United States. The World is not secure unless we have Complete and Total Control of Greenland. Thank you! President DJT”](https://cdn.bsky.app/img/feed_thumbnail/plain/did:plc:hbpefio3f5csc44msmbgioxz/bafkreie7itpptx3xbxhpsnlaqmwk752h7pcrion5ija2apksljtax2adx4@jpeg)
January 19, 2026 at 5:09 AM
mad king moment
from the PBS Newshour correspondent
from the PBS Newshour correspondent
Reposted by Matthew Cushman
This is such a cool illustration of how the Mercator map distorts the size of Greenland, which looks as big as the whole continent of Africa on that map but is actually the size of Mexico.
January 18, 2026 at 7:43 PM
This is such a cool illustration of how the Mercator map distorts the size of Greenland, which looks as big as the whole continent of Africa on that map but is actually the size of Mexico.
Reposted by Matthew Cushman
They can't dislodge the Fatberg from the sewers because every operative they send down there senses a deep peace when they approach it... an alien wisdom but not ancient, a modern cthonic. Leviathans in the earth.
January 17, 2026 at 8:40 PM
They can't dislodge the Fatberg from the sewers because every operative they send down there senses a deep peace when they approach it... an alien wisdom but not ancient, a modern cthonic. Leviathans in the earth.
Reposted by Matthew Cushman
hey train perverts wanna see the shinkansen cloaca
January 17, 2026 at 6:13 PM
hey train perverts wanna see the shinkansen cloaca
Reposted by Matthew Cushman
Me: I know pantyhose are a little dated but I love how they even out my skin tone
Teller: So is this not a robbery?
Me: No, it is
Teller: So is this not a robbery?
Me: No, it is
January 19, 2025 at 7:21 AM
Me: I know pantyhose are a little dated but I love how they even out my skin tone
Teller: So is this not a robbery?
Me: No, it is
Teller: So is this not a robbery?
Me: No, it is
Reposted by Matthew Cushman
Friendly reminder that we call eggplant eggplant because the "normal" eggplant used to look like this
January 12, 2026 at 5:42 AM
Friendly reminder that we call eggplant eggplant because the "normal" eggplant used to look like this
Reposted by Matthew Cushman
“I have asked the clergy of the diocese to make sure their affairs are in order and they have written their wills.,not the time for statements. It is time to put our bodies between the powers of this world and the most vulnerable”. Rob Hirschfeld, Bishop of the Episcopal Diocese of New Hampshire
Redirecting...
www.facebook.com
January 10, 2026 at 3:31 PM
“I have asked the clergy of the diocese to make sure their affairs are in order and they have written their wills.,not the time for statements. It is time to put our bodies between the powers of this world and the most vulnerable”. Rob Hirschfeld, Bishop of the Episcopal Diocese of New Hampshire
Reposted by Matthew Cushman
Reposted by Matthew Cushman
Finally managed to talk to my mum through a friend who drove to the Turkish border to get a Turkish cell connection. She is ok.
But the news coming out of Iran is horrible. Hundreds of people were killed by the security forces in the last two days. This is just am estimate from hospitals.
But the news coming out of Iran is horrible. Hundreds of people were killed by the security forces in the last two days. This is just am estimate from hospitals.
January 11, 2026 at 6:39 AM
Finally managed to talk to my mum through a friend who drove to the Turkish border to get a Turkish cell connection. She is ok.
But the news coming out of Iran is horrible. Hundreds of people were killed by the security forces in the last two days. This is just am estimate from hospitals.
But the news coming out of Iran is horrible. Hundreds of people were killed by the security forces in the last two days. This is just am estimate from hospitals.
Reposted by Matthew Cushman
I believe it was one of his lectures (not sure which) in the course 𝘍𝘢𝘤𝘵𝘰𝘳𝘪𝘻𝘢𝘵𝘪𝘰𝘯 𝘈𝘭𝘨𝘦𝘣𝘳𝘢𝘴 𝘢𝘯𝘥 𝘵𝘩𝘦 𝘎𝘦𝘯𝘦𝘳𝘢𝘭 𝘚𝘵𝘳𝘶𝘤𝘵𝘶𝘳𝘦 𝘰𝘧 𝘘𝘍𝘛 as part of Perimeter's 2019 program 𝘘𝘍𝘛 𝘧𝘰𝘳 𝘔𝘢𝘵𝘩𝘦𝘮𝘢𝘵𝘪𝘤𝘪𝘢𝘯𝘴 (link: scivideos.org/pirsa/c19023)
He teaches the course alternately with Philsang Yoo
He teaches the course alternately with Philsang Yoo
QFT for Mathematicians | SciVideos
QFT for Mathematicians
scivideos.org
January 9, 2026 at 5:30 PM
I believe it was one of his lectures (not sure which) in the course 𝘍𝘢𝘤𝘵𝘰𝘳𝘪𝘻𝘢𝘵𝘪𝘰𝘯 𝘈𝘭𝘨𝘦𝘣𝘳𝘢𝘴 𝘢𝘯𝘥 𝘵𝘩𝘦 𝘎𝘦𝘯𝘦𝘳𝘢𝘭 𝘚𝘵𝘳𝘶𝘤𝘵𝘶𝘳𝘦 𝘰𝘧 𝘘𝘍𝘛 as part of Perimeter's 2019 program 𝘘𝘍𝘛 𝘧𝘰𝘳 𝘔𝘢𝘵𝘩𝘦𝘮𝘢𝘵𝘪𝘤𝘪𝘢𝘯𝘴 (link: scivideos.org/pirsa/c19023)
He teaches the course alternately with Philsang Yoo
He teaches the course alternately with Philsang Yoo
Reposted by Matthew Cushman
Republicans: It wasn't a "kidnapping," and we did it because of drugs and because freedom
Trump: So I kidnapped him and took the oil
Trump: So I kidnapped him and took the oil
Trump on Venezuela: "That was a perfect attack. We've taken over a whole country. We've taken $4 billion of oil in one day. That will increase."
January 9, 2026 at 5:57 AM
Republicans: It wasn't a "kidnapping," and we did it because of drugs and because freedom
Trump: So I kidnapped him and took the oil
Trump: So I kidnapped him and took the oil
Reposted by Matthew Cushman
Theorem of the Day (January 9, 2026) : The Cantor–Bernstein–Schröder Theorem
Source : Theorem of the Day / Robin Whitty
pdf : buff.ly/6piWTCv
notes : buff.ly/TqUeDE5
#mathematics #maths #math #theorem
Source : Theorem of the Day / Robin Whitty
pdf : buff.ly/6piWTCv
notes : buff.ly/TqUeDE5
#mathematics #maths #math #theorem
January 9, 2026 at 11:00 AM
Theorem of the Day (January 9, 2026) : The Cantor–Bernstein–Schröder Theorem
Source : Theorem of the Day / Robin Whitty
pdf : buff.ly/6piWTCv
notes : buff.ly/TqUeDE5
#mathematics #maths #math #theorem
Source : Theorem of the Day / Robin Whitty
pdf : buff.ly/6piWTCv
notes : buff.ly/TqUeDE5
#mathematics #maths #math #theorem
Reposted by Matthew Cushman
Huge protest across Iran and even in the capital, Tehran.
January 8, 2026 at 6:38 PM
Huge protest across Iran and even in the capital, Tehran.
Reposted by Matthew Cushman
The woman killed by ICE today was a poet. She won the 2020 Academy of American Poets, University & College Poetry Prize at Old Dominion University.
(And this is Renee from confirmed socials- a photo of a different woman with red lipstick is going around, but that was a classmate.)
/
(And this is Renee from confirmed socials- a photo of a different woman with red lipstick is going around, but that was a classmate.)
/
January 8, 2026 at 12:13 AM
The woman killed by ICE today was a poet. She won the 2020 Academy of American Poets, University & College Poetry Prize at Old Dominion University.
(And this is Renee from confirmed socials- a photo of a different woman with red lipstick is going around, but that was a classmate.)
/
(And this is Renee from confirmed socials- a photo of a different woman with red lipstick is going around, but that was a classmate.)
/
Reposted by Matthew Cushman
Here’s an algebraic structure: R union {infinity}, with these two binary operations:
+,
and x || y = 1/(1/x + 1/y).
What is this? Each binary operation is independently an abelian group plus an absorbing element. But I don’t see any obvious identities involving both operations.
+,
and x || y = 1/(1/x + 1/y).
What is this? Each binary operation is independently an abelian group plus an absorbing element. But I don’t see any obvious identities involving both operations.
January 7, 2026 at 12:38 AM
Here’s an algebraic structure: R union {infinity}, with these two binary operations:
+,
and x || y = 1/(1/x + 1/y).
What is this? Each binary operation is independently an abelian group plus an absorbing element. But I don’t see any obvious identities involving both operations.
+,
and x || y = 1/(1/x + 1/y).
What is this? Each binary operation is independently an abelian group plus an absorbing element. But I don’t see any obvious identities involving both operations.
Reposted by Matthew Cushman
every seat in a movie theater should have an "I have to pee" button and if enough people press it they should be able to pause the movie
January 7, 2026 at 2:08 AM
every seat in a movie theater should have an "I have to pee" button and if enough people press it they should be able to pause the movie
Reposted by Matthew Cushman
"Marco Rubio, we salute you!"
A real thing that was said by the CBS Evening News anchor tonight.
A real thing that was said by the CBS Evening News anchor tonight.
January 7, 2026 at 1:02 AM
"Marco Rubio, we salute you!"
A real thing that was said by the CBS Evening News anchor tonight.
A real thing that was said by the CBS Evening News anchor tonight.
Reposted by Matthew Cushman
"your honor, some people called the defendant 'The Gangster of Love'"
January 6, 2026 at 2:15 PM
"your honor, some people called the defendant 'The Gangster of Love'"
Reposted by Matthew Cushman
Ratatouille sequel where he must compete against a restaurant run by his evil brother, who crawled out of a toilet in the Pacific Northwest and took over a random fast food employee
January 6, 2026 at 3:46 AM
Ratatouille sequel where he must compete against a restaurant run by his evil brother, who crawled out of a toilet in the Pacific Northwest and took over a random fast food employee
Reposted by Matthew Cushman
I keep getting these ads to upgrade my desk chair and they're gradually wearing me down
January 5, 2026 at 8:07 PM
I keep getting these ads to upgrade my desk chair and they're gradually wearing me down
Reposted by Matthew Cushman
the reason people sometimes act madder at democrats than republicans when republicans do impossibly evil shit is the same reason why, if you hired an exterminator to handle a roach infestation and he showed up to feed and play with them instead, your first instinct wouldn’t be to yell at the roaches
January 3, 2026 at 9:19 PM
the reason people sometimes act madder at democrats than republicans when republicans do impossibly evil shit is the same reason why, if you hired an exterminator to handle a roach infestation and he showed up to feed and play with them instead, your first instinct wouldn’t be to yell at the roaches
Reposted by Matthew Cushman
[Jeffries voice] invading venezuela will not help reduce the cost of living for hardworking american families
January 3, 2026 at 7:24 AM
[Jeffries voice] invading venezuela will not help reduce the cost of living for hardworking american families
Reposted by Matthew Cushman
Caracas is under fire. Multiple U.S. strikes have hit key military sites: Fuerte Tiuna, La Carlota airbase, and a communications center in El Hatillo. Explosions echo through the capital, the power is out in parts of the city, and U.S. helicopters are flying low. Fires also rage near La Guaira.
January 3, 2026 at 6:52 AM
Caracas is under fire. Multiple U.S. strikes have hit key military sites: Fuerte Tiuna, La Carlota airbase, and a communications center in El Hatillo. Explosions echo through the capital, the power is out in parts of the city, and U.S. helicopters are flying low. Fires also rage near La Guaira.
Reposted by Matthew Cushman
With focus on the 9+ helicopters over Caracas as the impacts are happening around them, the timing of the overflight and presumed landing are within seconds of the helo passes. That is not likely by accident, but part of a coordinated part of whatever op is going on tonight.
By Kim Høvik on Twitter
By Kim Høvik on Twitter
January 3, 2026 at 7:03 AM
With focus on the 9+ helicopters over Caracas as the impacts are happening around them, the timing of the overflight and presumed landing are within seconds of the helo passes. That is not likely by accident, but part of a coordinated part of whatever op is going on tonight.
By Kim Høvik on Twitter
By Kim Høvik on Twitter