B2 · Upper Intermediate
12 min
motorsportengineeringsafety technologysports science
The Big One: Technology, Speed, and Safety in Stock Car Racing
El Gran Accidente: Tecnología, Velocidad y Seguridad en las Carreras
This week, a 26-car pileup shook Talladega Superspeedway during NASCAR's Jack Link's 500. Fletcher and Octavio dig into the physics, engineering, and safety history behind American stock car racing.
Esta semana, un accidente de 26 coches sacudió la pista de Talladega durante la carrera Jack Link's 500 de NASCAR. Fletcher y Octavio profundizan en la física, la ingeniería y la historia de seguridad detrás de las carreras de coches americanas.
5 essential B2-level terms from this episode, with translations and example sentences in Spanish.
| Spanish | English | Example |
|---|---|---|
| retroalimentación | feedback (informational, not food-related) | Los ingenieros usan la retroalimentación de los sensores para mejorar el diseño del coche. |
| aerodinámica | aerodynamics | La aerodinámica del coche es fundamental para mantener el control a alta velocidad. |
| dispositivo | device | El dispositivo HANS protege la cabeza y el cuello del piloto en caso de impacto. |
| telemetría | telemetry | Gracias a la telemetría, los ingenieros pueden ver en tiempo real lo que le pasa al coche. |
| desaceleración | deceleration | Una desaceleración más larga reduce la fuerza que el piloto recibe en un accidente. |
Twenty-six cars.
One crash.
I've been watching motorsport for decades and that number still made me stop and read the sentence twice.
Mira, para entender lo que pasó en Talladega este fin de semana, primero hay que entender que este tipo de accidente tiene nombre propio: lo llaman 'The Big One', el gran accidente.
Look, to understand what happened at Talladega this weekend, you first have to understand that this kind of crash has its own name: they call it 'The Big One'.
And the fact that it has a name tells you something right there.
This isn't a freak event.
It's almost a feature of the track.
Exactamente.
Exactly.
Talladega es diferente a cualquier otro circuito en el mundo.
Talladega is unlike any other circuit in the world.
Es una pista ovalada enorme, de más de cuatro kilómetros, con curvas muy inclinadas que permiten que los coches alcancen velocidades imposibles.
It's a huge oval track, more than four kilometers long, with steeply banked turns that let cars reach impossible speeds.
We're talking about two hundred miles an hour.
On a road course, with walls ten feet away on either side.
Y la clave de Talladega es algo que los ingenieros llaman el 'drafting', que en español sería algo como 'aspiración aerodinámica'.
And the key to Talladega is something engineers call 'drafting'.
Cuando un coche va muy rápido, deja una zona de baja presión detrás de él, y el coche que va detrás puede aprovechar eso para ir aún más rápido.
When a car goes very fast, it leaves a low-pressure zone behind it, and the car following can use that to go even faster.
It's essentially the same principle that makes cycling pelotons work.
You tuck in behind someone, you get pulled along.
But at two hundred miles an hour, the dynamics get considerably more consequential.
Claro.
Right.
Y aquí viene lo interesante desde el punto de vista tecnológico: en Talladega y en Daytona, que son las dos superpistas, NASCAR obliga a los equipos a instalar un dispositivo llamado 'tapered spacer', que antes se llamaba 'restrictor plate', en el motor.
And here's the interesting part from a technology standpoint: at Talladega and Daytona, the two superspeedways, NASCAR forces teams to install a device called a 'tapered spacer', formerly called a 'restrictor plate', in the engine.
Which limits how much air the engine can breathe, and therefore how much power it can produce.
They're essentially choking the engine on purpose.
Es que sin ese dispositivo, los coches podrían superar fácilmente los trescientos cincuenta kilómetros por hora.
Without that device, the cars could easily exceed three hundred and fifty kilometers per hour.
Y el problema no es solo la velocidad en sí, sino lo que pasa cuando un coche a esa velocidad pierde el control cerca de otros cuarenta coches.
And the problem isn't just the speed itself, but what happens when a car at that speed loses control near forty other cars.
What started this one was Bubba Wallace getting pushed from the outside.
He loses it, and then it's physics from there.
Exacto.
Exactly.
Y esto es fundamental para entender el accidente: en Talladega, los coches corren en grupos muy compactos, literalmente a centímetros unos de otros, porque el drafting los hace más rápidos cuando van juntos.
And this is fundamental to understanding the crash: at Talladega, the cars race in very tight packs, literally centimeters apart, because drafting makes them faster when together.
Cuando uno falla, no hay tiempo de reaccionar.
When one fails, there's no time to react.
The reaction time at those speeds is essentially zero.
By the time your brain registers something has gone wrong, the car in front of you is already sideways.
Y por eso, a pesar de que fue un accidente enorme, nadie murió.
And that's why, despite being a massive crash, nobody died.
Eso es gracias a décadas de innovación tecnológica en seguridad que empezó, trágicamente, con la muerte de Dale Earnhardt en Daytona en 2001.
That's thanks to decades of safety innovation that began, tragically, with Dale Earnhardt's death at Daytona in 2001.
That death changed everything.
Earnhardt was arguably the biggest star the sport had ever produced, and he died on the last lap of the Daytona 500 from what turned out to be a basilar skull fracture.
From a relatively routine-looking crash.
Claro, y la investigación que siguió fue extraordinaria.
Right, and the investigation that followed was extraordinary.
NASCAR descubrió que el tipo de impacto, un golpe frontal a alta velocidad, podía ser mortal incluso cuando el chasis del coche parecía intacto.
NASCAR discovered that the type of impact, a high-speed frontal blow, could be fatal even when the car's chassis looked intact.
El problema era la cabeza del piloto.
The problem was the driver's head.
The head keeps moving after the body stops.
There's a device now that addresses that directly: the HANS device, which stands for Head and Neck Support.
It physically tethers the helmet to the seat harness.
Ese dispositivo se volvió obligatorio en NASCAR poco después de la muerte de Earnhardt, y se usa hoy en prácticamente todos los deportes de motor del mundo, incluyendo la Fórmula 1.
That device became mandatory in NASCAR shortly after Earnhardt's death, and is used today in virtually all motorsports worldwide, including Formula 1.
Es uno de los inventos más importantes en la historia de la seguridad automovilística.
It's one of the most important inventions in automotive safety history.
And then there's the wall itself.
The tracks also changed.
They installed what's called the SAFER barrier around the inside of the walls.
Sí, SAFER significa Steel And Foam Energy Reduction, reducción de energía con acero y espuma.
Yes, SAFER stands for Steel And Foam Energy Reduction.
La idea es que cuando un coche impacta contra el muro, la barrera se deforma y absorbe energía en lugar de devolvérsela al piloto.
The idea is that when a car hits the wall, the barrier deforms and absorbs energy instead of bouncing it back at the driver.
Es como la diferencia entre golpearse contra una pared de piedra y contra un colchón.
It's like the difference between hitting a stone wall and hitting a mattress.
The physics here are genuinely elegant.
You can't eliminate the kinetic energy, so you extend the time over which it dissipates.
Longer deceleration, lower peak force on the human body.
Exactamente.
Exactly.
Y luego está el coche en sí.
And then there's the car itself.
El modelo actual de NASCAR, que llaman el 'Next Gen' o Gen-7, fue diseñado desde cero con la seguridad como prioridad.
The current NASCAR model, called the 'Next Gen' or Gen-7, was designed from scratch with safety as a priority.
El asiento del piloto está en el centro del coche, no a la izquierda como en los modelos anteriores, precisamente para protegerlo mejor en los impactos laterales.
The driver's seat is in the center of the car, not to the left as in earlier models, precisely to better protect them in side impacts.
Which matters a lot when you're at Talladega, because the most dangerous impacts there are usually door-to-door, not front-to-wall.
Cierto.
Right.
Y hay otra innovación que me parece fascinante: los coches modernos de NASCAR están llenos de sensores que recogen datos en tiempo real.
And there's another innovation I find fascinating: modern NASCAR cars are full of sensors collecting real-time data.
Temperatura, presión, vibración, velocidad de cada rueda.
Temperature, pressure, vibration, speed of each wheel.
Los ingenieros en el box ven más información sobre el coche que el propio piloto.
The engineers in the pit box see more information about the car than the driver himself.
The telemetry side of modern racing is almost a separate discipline.
These teams run simulation software before a race weekend that models everything from tire degradation to fuel load, and the real cars are generating live data that feeds back into those models.
Hombre, es que ya no se trata solo de ser buen piloto.
I mean, it's no longer just about being a good driver.
Los mejores equipos en NASCAR tienen departamentos enteros de científicos de datos, de ingenieros aeronáuticos, de especialistas en materiales.
The best teams in NASCAR have entire departments of data scientists, aeronautical engineers, materials specialists.
Es una industria tecnológica disfrazada de deporte popular.
It's a technology industry disguised as a popular sport.
That tension is interesting, though.
Because part of NASCAR's whole identity is that these are supposed to be cars that look like production vehicles.
A Chevrolet, a Ford, a Toyota.
The fiction that this is something you could buy at a dealership.
Sí, aunque eso es pura imagen, claro.
Yes, though that's pure image, of course.
El coche que compite en Talladega no tiene nada que ver con el que puedes comprar.
The car racing at Talladega has nothing to do with one you can buy.
Pero esa imagen es importante para NASCAR porque su público es muy diferente al de la Fórmula 1.
But that image matters to NASCAR because its audience is very different from Formula 1's.
Es un deporte más popular, más arraigado en la cultura del sur de los Estados Unidos.
It's a more popular sport, more rooted in the culture of the American South.
The origins go back to bootleggers, actually.
Prohibition-era drivers who modified their cars to outrun federal agents, and then started racing each other on weekends.
There's a whole lineage there that NASCAR has never fully shaken.
Eso es fascinante.
That's fascinating.
Porque si lo piensas, esa historia explica mucho de la cultura del deporte: la desconfianza de las élites, el orgullo de la ingeniería artesanal, la idea de que un hombre ordinario puede competir con los recursos que tiene.
Because if you think about it, that history explains a lot about the sport's culture: the distrust of elites, the pride in craftsmanship, the idea that an ordinary man can compete with the resources he has.
Y también explica por qué el accidente masivo, 'The Big One', forma parte del espectáculo.
And it also explains why the massive crash, 'The Big One', is part of the spectacle.
Right, and there's a real philosophical problem buried in that.
NASCAR has put billions into safety technology, and it works.
Nobody died at Talladega this weekend.
But the fans aren't there purely despite the danger.
Some of them are there partly because of it.
How do you reckon with that?
Es una pregunta muy honesta.
It's a very honest question.
Y creo que NASCAR lleva décadas navegando esa contradicción sin resolverla del todo.
And I think NASCAR has spent decades navigating that contradiction without fully resolving it.
Por un lado, quieren que el deporte sea seguro, porque obviamente no quieren que mueran pilotos.
On one hand, they want the sport to be safe, because obviously they don't want drivers to die.
Por otro lado, saben que parte del atractivo de Talladega es precisamente que es impredecible y peligroso.
On the other hand, they know part of Talladega's appeal is precisely that it's unpredictable and dangerous.
Formula 1 went through the same reckoning in the nineties.
Senna, Ratzenberger, both dying at Imola in 1994.
The sport became almost fanatically focused on safety after that, to the point where some purists complained it had lost its edge.
Y sin embargo, la Fórmula 1 sobrevivió y se hizo más popular que nunca.
And yet Formula 1 survived and became more popular than ever.
Creo que hay algo importante ahí: los espectadores pueden apreciar la velocidad extrema, la habilidad, la tecnología, sin necesitar que alguien muera para que tenga sentido.
I think there's something important there: spectators can appreciate extreme speed, skill, and technology without needing someone to die for it to make sense.
El peligro puede ser latente sin ser mortal.
The danger can be latent without being lethal.
Twenty-six cars destroyed in one afternoon and not a single fatality.
When you put it that way, [chuckle] the technology is almost the story, more than the crash itself.
Completamente de acuerdo.
Completely agree.
Y eso es algo que no se valora suficientemente.
And that's something that doesn't get enough credit.
Cada vez que hay un accidente masivo en Talladega y todos los pilotos salen caminando, ese resultado es producto de ingeniería, de física aplicada, de años de investigación.
Every time there's a massive crash at Talladega and all the drivers walk away, that outcome is the product of engineering, applied physics, years of research.
No es suerte.
It's not luck.
There's probably a wider lesson in that for how we think about industrial safety generally.
The incidents that don't happen don't make headlines, by definition.
Exacto.
Exactly.
Y antes de terminar, quiero volver a algo que dijiste antes, Fletcher, porque usaste una palabra en inglés que me parece muy útil para los oyentes: dijiste que los coches generan datos que 'feed back into' los modelos.
And before we finish, I want to come back to something you said earlier, Fletcher, because you used an idea that I think is very useful for listeners: you said the cars generate data that feeds back into the models.
Esa idea de 'retroalimentación' es muy importante en tecnología.
That idea of feedback is very important in technology.
Right.
And you translated it as 'retroalimentación'.
Which, when you break it down literally, is 'retro' plus 'alimentación', which means feeding backward.
I actually love that.
It's more descriptive than the English.
Sí, y es una palabra que se usa mucho en contextos técnicos y también en conversaciones normales.
Yes, and it's a word used a lot in technical contexts but also in normal conversation.
Puedes decir 'necesito tu retroalimentación sobre este proyecto', igual que en inglés dices 'I need your feedback'.
You can say 'necesito tu retroalimentación sobre este proyecto', just like in English you say 'I need your feedback'.
Es lo mismo.
It's the same.
So if you're working in a Spanish-speaking office and someone asks for your 'retroalimentación', they want your feedback.
Not, as I would probably assume, some kind of food-related request.
Fletcher, cada vez que intentas hacer un chiste sobre el idioma, me recuerda que eres el hombre que le dijo a mi madre que estaba 'muy embarazado'.
Fletcher, every time you try to make a language joke, it reminds me you're the man who told my mother he was 'muy embarazado'.
Por favor, deja los chistes de idiomas para mí.
Please leave the language jokes to me.
Retroalimentación.
I'm writing that one down.
Twenty-six cars, zero deaths, and one new word.
Not a bad Sunday.