Discover and read the best of Twitter Threads about #engineering

Most recents (24)

1/ #SpaceX y #NASA intentarán hoy nuevamente poner a seres humanos en el espacio nuevamente desde suelo estadounidense.

Alcanzar órbita es una verdadera proesa técnica y científica.

Quiero contarles brevemente lo que implica. 👇
2/ Poner un objeto en órbita significa "lanzarlo" de tal forma que, aunque siempre se esté "cayendo", vaya tan rápido que se pase de la curvatura de la Tierra.

La velocidad a la que debe ser lanzado depende de la altura de esa órbita.

(animación de: @InertialObservr)
3/ ¿Y como se impulsa el cohete?

Por la Tercera Ley de Newton: por cada fuerza existe otra de igual magnitud pero en dirección opuesta.

La presión del combustible explotando dentro de su cámara de combustión lo impulsa en la dirección opuesta de su escape.
Read 12 tweets
I've just read @MattwRidley's interesting new book.
Here are my thoughts....

#innovation #engineering #patents #intellectualproperty @harperbooks @HarperCollins
The key message of 'How Innovation Works' is this:
Innovation and inventing is being stifled by bureaucracy, patents, and rent-seeking.

As an R&D engineer and computer scientist, these are problems that I have experienced directly, so I hope this book impacts govt policy.

The book's core claims are convincing:

- Turning ideas into products is more important than the initial act of invention.
- Inventors overestimate their own value, and the patent system gives them a monopoly in tech that they may not be willing or able to commercialise.

Read 18 tweets
Hoy empezaremos con la imagen de la izquierda y acabaremos en la imagen de la derecha. Si no te lo crees del todo, hilo va.

#puentes, #Ingenieria, #estructuras, #bridges, #Engineering, #Structures
Esto es una viga simplemente apoyada. Tiene un punto fijo A y otro deslizante B (carrito). En realidad, si la viga AB es rígida, el punto B se puede considerar fijo dado que está bloqueado horizontalmente por A.
Podríamos disponer un tramo BC en voladizo atirantándolo por medio del mástil BD y un par de tirantes (en azul en la imagen). Puedo poner una carga P en el extremo del voladizo. El equilibrio se garantiza gracias al par de fuerzas T y V.
Read 19 tweets
Me voy a las afueras de #Glasgow para ver uno de esos puentes que no te deja indiferente.

Puente de Erskine, sobre el río Clyde, #Escocia, Reino Unido.…
Se trata de un puente atirantado metálico de 305 m de luz con tan solo dos cables sosteniendo el vano principal.

No conozco ningún otro puente atirantado con una vano tan grande con tan pocos tirantes. Es una mezcla de proeza y temeridad a partes iguales.
El tablero es un cajón metálico de algo más de 31 m de ancho y alberga dos carriles para vehículos por sentido, carril bici y carriles peatonales.
Read 12 tweets
This is what happens to aluminum when hit by a 1/2 oz (~14g) piece of plastic going 15,000 mph (~24000 km/h) in space 💥

👆 shows the violence a little piece of orbiting space debris can wreak on a spacecraft 🛰

That’s the great thing about Kinetic Energy (KE):

KE = ½mv^2

Velocity is *far* more important than mass. Doesn’t matter how light something is...if it’s moving really fast, it can pack a serious punch!

Read 16 tweets
#Occupy: A #MUST (long-) #READ !
Search for Truth on #Origin of #COVID19.
#Questions needing #Answers.

The #Truth has to come out.
We need ONE MORE #Brave #Edward #Snowdon
or #Chelsea #Manning, another #HERO
to leak the information.

>… <-via @veteranstoday
#Occupy: Serial: "The #Crumbling #Empire".
Episode: "#Final #Blow by a #Feral #Biowar-#Virus".

Despite #WHO obligations, the Empire's #CDC
refuses to #Show its #COVID19-#Origin-Patient Zero,
#Attacks the WHO itself & anyone requesting that information.

#Occupy: In Search of #Truth on the #Origin of #SARS_CoV_2.

The original #Strain, "A"
is not the Main-strain in China (= "B")
and is also found in the #US & #Australia.

#Genetic network analysis provides "snapshot"
of #COVID19-#Pandemic #Origins:

Read 8 tweets
#BSDBGenSoc2020 These days we all have other things in our minds, it is difficult to concentrate and many of my thoughts R w/ family anf friends in #Spain) but discussing our work, is an important part of our being and it is going to be important in the weeks and months to come.
While many, all, of us rather do al this in person, we are going to have to adjust in the weeks to come. #BSDBGenSoc2020 is a good way to explore how we are going to do it so, THANKS @_BSDB_ and @the_Node for organizing and running this.
My Tweetorial follows the phenomenal one from @TimFulton_1 @SteventonLab (with whom @AMA_Lab work closely) this morning and is very related.

And now onto the tweetorial in the form of a loooong thread.
Read 25 tweets
Day 1: I use twitter @melaniejward to keep up with space news and advertise events I run, but still am still relatively new to the twitter game. I'll start the the week with this about me thread that can double as a highlight for some amazing space happenings in Australia!
One of the aforementioned events happens to be coming up, a #women in #engineering highlight in honour of #WomensHistoryMonth. As young professionals officer for @aiaa I've been arranging this panel for two months, and very excited to be moderating this Thursday. #WomenInSTEM
Been passionate about space since I was a kid, even went to #spacecamp at the Challenger Learning Center. This is where I met Dr Sally Ride, she was the second grown up (the first being my mum) that encouraged my dream not to go to #space but instead to support those who do.
Read 14 tweets
ב-16 בינואר, 2003, מעבורת החלל קולומביה המריאה למשימתה האחרונה STS-107. בין שבעת אנשי הצוות, האסטרונאוט הישראלי הראשון, אילן רמון.

השנה, חשבתי לעשות #שרשורחלל מתמשך, אשר ידגים בכל יום קצת ממהלך המשימה.
בין אנשי הצוות: שורה אחרונה- מימין (דגל ישראל) אילן רמון, מייקל אנדרסון, קפלנה צ'אולה
שורה אמצעית - ויליאם מק'קול, לוריאל קלארק, דיוויד בראון
מקדימה - מפקד המשימה - ריק האסבנד
מתחילים! 16/1 - מעבורת החלל קולומביה משוגרת, בשעה 15:39 UTC
(האם ציפיתם בשיגור? אני כן, בהתרגשות רבה)
כאן התחיל הסוף, אבל אנחנו נתמקד במשימה...
Read 277 tweets
Introducing "Invisible Bridges"--my column in @theNAEng periodical The Bridge. The inaugural piece explores the notion of "composite minds" for #engineering with inspiration from Ove Arup, Walter Gropius, & #Bauhaus (now in its centenary).…
@theNAEng Arup sometimes carried a “pair of extra-long chopsticks in his top pocket, to poach enticing dishes from his neighbor’s plate.” Were these chopsticks perhaps a metaphor for something else? As in, how to pick and transfer nutrients across what we resignedly call “disciplines”?
@theNAEng A real dichotomy exists in meeting a client’s needs and generating profits versus achieving the moral aims of a work, as Arup reminded.
Read 10 tweets
Supongamos que tenemos una viga simplemente apoyada.
Esta viga está sometida a su peso propio, por lo que se deformará de una manera como la representada en la figura.
La deformada la he aumentado, digamos, 10 veces para que sea claramente apreciable.
Read 17 tweets
Do we really know #Science & #Physics as well as we think? People like Dr. John G. #Trump did things had only been done by Nikola Tesla previously. Was #Technology #suppressed since the 19th century?…

#Learn... #QAnon #WWG1WGA #8kun #MAGA
Just who was Dr. John G. #Trump, uncle of @POTUS?
Read a profile of him from the #Journal - #Physics Today:…

A daughter, Christine, same name as Julian #Assange's mother, has been partially obscured on the web.
#Learn... #QAnon #WWG1WGA #8kun #MAGA #KAG
Here is the #Obituary of Dr. John G. #Trump published by #Physics Today. Positive-ion #Accelerator? Was he the inventor of the #Proton-#Beam used in #Therapy today?
Clearly more than a big #electron #gun in his repertoire.

#Learn... #QAnon #WWG1WGA #8kun #MAGA #KAG
Read 5 tweets
Live tweeting re-watch of #MainPremKiDiwaniHoon henceforth to be referred to as #MPKDH

First 5 minutes, and this college clearly never had a #POSH training because a student has plopped into a professor's lap and the professor is telling the girls they'll clear the exams
And of course the #electricguitar is connected to

When I see a puppy
Read 118 tweets
We’ve finalized our speaker line-up! 🎙️ 1 day. 1 track. 12 industry experts in growth, product, engineering, and design 👩‍💼👨‍💻. Amplify this October 8th is going to be amazing.

(Pssst..keep reading for a hidden promo code!👇)

(2/13) 📊 We are delighted to welcome @merci as a speaker again at Amplify! Merci is currently a partner at @lightspeedvp. She is also the Founder of @womeninproduct and former Director of Product at Slack.
(3/13) 💡 Company founders including @ericsyuan, Founder and CEO of @zoom_us (the highest valued IPO of 2019) and @buckhouse, Founder of @Sequoia Design Lab.
Read 13 tweets
Interesting. #UnsealEpstein

Former MIT media lab staffer says leadership made it clear Epstein's donations were to be kept secret - CNN…
#Epstein = 'Voldemort'? 🤔 5:5?
#UnsealEpstein MIT has some 'splaining to do...
Read 16 tweets
A ver, a los fabricates de juguetes, NO TODO VALE.

#puentes #Engineering #CivilEngineering #estructuras #ingeniería
Venga, vamos a repasar juntos tipologías básicas de puentes que podríais incluir en vuestro inventario. Ya de paso repasamos todos.

¡La proporción y la escala, os la compro! Iré desde la tipología de puente más sencilla a la más complicada.
Empiezo con el puente viga. La viga más clásica que hay es la celosía.
Hay más tipos de vigas. He incluido una de alzado curvo .
Read 15 tweets
"You don't see radio changing gradually and suddenly become radar. #Darwin's theory doesn't work for #technology, and we have to make a new observation."

- W Brian Arthur at SFI today

#evolution #innovation #invention
"Novel technologies are constructed from existing technologies. These offer themselves as components for the construction of further technologies."

- W Brian Arthur at SFI today

#evolution #innovation #invention #technology #engineering #design
Unlike the two-parent #inheritance typical to (but not ubiquitous among) #complex organisms, #technology inherits features from n parents - a "vast ancestral #network" more like horizontal gene transfer networks in #bacteria.

W Brian Arthur on sumulating #invention on a chip:
Read 18 tweets
Thanks @braveproductguy for sharing this set of Cognitive biases in #software #engineering
A. 𝐀𝐧𝐜𝐡𝐨𝐫𝐢𝐧𝐠 𝐚𝐧𝐝 𝐚𝐝𝐣𝐮𝐬𝐭𝐦𝐞𝐧𝐭 𝐛𝐢𝐚𝐬 - work fills up the space you allot to it. Use budgets instead of estimates to build a quality feature
@braveproductguy B. 𝐀𝐧𝐜𝐡𝐨𝐫𝐢𝐧𝐠 𝐚𝐧𝐝 𝐚𝐝𝐣𝐮𝐬𝐭𝐦𝐞𝐧𝐭 𝐛𝐢𝐚𝐬 - Missing links, lack of readability and documents leads people to use their own understanding of the system thereby making insufficient modifications.
@braveproductguy C. 𝐀𝐧𝐜𝐡𝐨𝐫𝐢𝐧𝐠 𝐚𝐧𝐝 𝐚𝐝𝐣𝐮𝐬𝐭𝐦𝐞𝐧𝐭 𝐛𝐢𝐚𝐬 - Initial solution design or architecture design does not evolve sufficiently to accommodate new changes, requests or constraints. Developers who anchor on existing solutions tend to include unnecessary features.
Read 17 tweets
5. The legacy of US, UK, Australia, Poland and NATO in Iraq

#Iraq #CrimesAgainstHumanity #WarCrimes #CrimesAgainstChildren
1. The legacy of US, UK, Australia, Poland and NATO in Iraq 🤨👇🏼…
2. The legacy of US, UK, Australia, Poland and NATO in Iraq 🤨👇🏼
Read 50 tweets
Elon Musk was born on June 28, 1971, in South Africa.

Companies founded
Age 24: Zip2
Age 28: PayPal
Age 30: SpaceX
Age 32: Tesla
Age 44: OpenAI
Age 45: Neuralink, Boring Co.

“I think it is possible for ordinary people to choose to be extraordinary.”

Happy birthday, @elonmusk!
Tesla’s annual revenue

2007: $73,000
2008: $15 million
2009: $112 million

2015: $4.1 billion
2016: $7.0 billion
2017: $11.8 billion
2018: $21.5 billion

(Tesla) #future #automotive
The rise of SpaceX 🚀

2002: $27 million valuation
2009: $547 million valuation
2019: $34 billion valuation

(PitchBook) #spacex #engineering
Read 9 tweets
After reading this, your thinking on the brain will not be the same. The thoughts are mine. The words from @nickwarren #tweetstorm cc @subsetharry @kimadele10 @argent_phil @iPerrySimpson @ai_rajsharma @DaveHillman2 @Samlindley9 @CaroleAnnRice @scottkeyser @NikiCassidy @pennypower
#1 - They diagnosed me with #dyslexia when I was 43, but by then it didn’t matter.
#2 - I already knew my brain was different.
Read 35 tweets
1/7 "Please Don't Eat the Popcorn: Olive Salembier, a lady with an unusual job, packages everything from homemade pickles to military equipment for Viet Nam" - July 1970 article from Phoenix magazine #WomeninEngineering @SWEtalk @ReutherLibrary
2/7 Olive Salembier was a self-trained packaging engineer, packaging business owner, and 1970-1972 president of @SWEtalk.
3/7 "A child was shipping an exhibit to a science fair in intricate affair made of a lightweight styrofoam ball covered with glitter and intricate wires and toothpicks..."
Read 7 tweets
A este hilo le vamos a colgar un peso (saquito). Este hilo adquirirá una forma como la representada.
Seguimos. Si al hilo le colgamos dos pesos más, este adquirirá esta otra forma...más o menos.
Read 40 tweets
Last night our founder @reshmasaujani called out @60Minutes for ft. a man as the savior of girls & women in tech. Here are some of the women-led orgs that they could have called to include in the segment.....…

There's @NCWIT headed by female founder Lucy Sanders, the org is made up of more than 1,100 universities, companies, orgs nationwide working to increase girls’ + women’s participation in computing

.@KodeWithKlossy, founded by incredible @KarlieKloss hosts coding summer camps for girls and fosters a national community furthering opportunities for girls in tech

Read 13 tweets

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