stuck in a tunnel? (1) (1)

stuck in a tunnel? (1) (1)

Hey folks, Joey here from The Engineer's Espresso, and welcome to this not-so-nerdy (but nerdy) newsletter.

Before jumping in, answer this:

What's your go-to engineering snack?

Nuts and bolts (just kidding, give me those chips).

Anything I can eat with one hand so I can keep typing.

I chew on problems, does that count?

Wheels that think on their feet

Picture this: you're cruising on a smooth highway and suddenly, the road gets bumpy. But instead of you adjusting, your car's wheels adapt on their own—like a smoooooth operatorrrr!

What's the Big Idea?

This isn't your average wheel upgrade. Researchers at Science Robotics have developed a wheel that can change its stiffness depending on the terrain—Flat roads? It goes hard for speed. Rocky paths? It softens up to glide over obstacles.

Inspired by how a water droplet holds its shape, these wheels can switch from rigid to flexible in a snap, making your ride smoother and more adaptable than ever before.

How Does It Work?

It's all about the tension in the spokes and a smart chain around the rim.

By adjusting the tension, the wheel can either maintain a perfect circle for speed or morph to meet the messy roads.

It's thrilling to see these wheels twist and turn, adapting in real-time.

Explore the science behind these wheels

What do you think about wheels that adapt as you ride?

Finally, a wheel that catches up with the rest of my tech!

Cool concept, but I'll stick to traditional until I see them in action.

Wheels that adapt? Now if only they could fix potholes too!

Trivia for the Tech-Obsessed

Test your engineering prowess and maybe learn a thing or two with our quick-fire trivia challenge.

Q1. Which ancient engineering marvel is composed of a series of aqueducts, used to transport water across mountains and valleys, and still stands in parts of modern-day Iran?

Select correct answer

a) Roman Aqueducts

b) The Qanat System

c) The Shushtar Hydraulic System

d) Hanging Gardens of Babylon

What groundbreaking material, stronger than steel and lighter than aluminum, was first created in a lab in 2004 using a simple piece of tape?

Select correct answer

a) Kevlar

b) Carbon fiber

c) Graphene

d) Titanium alloy

In which country can you find a bridge that uses glass panels with liquid crystals to display patterns and images when electric current passes through, acting as both a bridge and an art installation?

Select correct answer

a) Japan

b) South Korea

c) China

d) France

The Next-Level Subway Tunnel Flood Alert

If you're like me, every time you ride the subway there's always a lingering thought: "What happens if I get stuck?" 

And to make those fears even worse—what happens if the tunnel floods?

Maybe we all could just…

Thanks to a crack team led by Wenxuan Dong and Hong Huang, there's now a smarter way to dodge the drip!

Their latest study models subway flooding… but even goes further to PREDICT floods in a high-tech way.

The Triple Threat Strategy: Pre-soak, Soak, and Post-soak

This system does more than just watch the water levels rise.

Why It’s a Game-Changer

This system cuts through the guesswork and gives us a flood defense that’s proactive, not reactive. It’s designed to be easy on the budget while keeping our subways running smoothly—minus the unexpected pools.

No fuss, no muss, just a dry ride to your destination.

Ride it or read it

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