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The Wall Street Journal spoke with Benjamin Lee, a professor of engineering at the University of Pennsylvania, about the challenges of space-based computing. Photo: Mario Tama/Getty Images; June Bang/WSJ

https://m.wsj.net/video/20260501/f32efb95-b382-46d2-8b5a-7f3cabd7a744/1/hls/manifest-hd-wifi.m3u8

The Wall Street Journal spoke with Benjamin Lee, a professor of engineering at the University of Pennsylvania, about the challenges of space-based computing.

SpaceX Wants to Blast Data Centers Into Orbit. Here’s What It May Take.

Each episode of Pro Perfected uses a quintessential expert in the specific topic area to explain how they would perfect a common problem.

From vanishing closets, to disappearing desks – your hotel room has been shrinking. WSJ speaks to a leading hotel designer to find out how some hotels are able to keep guests happy with smaller rooms. Photo Illustration: George Downs/The Wall Street Journal

https://m.wsj.net/video/20250728/ee458289-6f24-4aab-8dfa-659546046881/1/hls/manifest-hd-wifi.m3u8

From vanishing closets, to disappearing desks – your hotel room has been shrinking. WSJ speaks to a leading hotel designer to find out how some hotels are able to keep guests happy with smaller rooms.

The Money-Making Secrets Behind Hotel Design, Explained

Why the Minibar Vanished: How Hotels Maximize Profit From Your Stay

At Babcock Ranch, the roads are designed to flood during a hurricane. The town’s engineer explains how this and other hidden tactics keep the town safe even during a hundred-year storm. Photo Illustration: MacKenzie Coffman

https://m.wsj.net/video/20250707/1e02f3c8-573b-456f-8e26-60b35539b549/2/hls/manifest-hd-wifi.m3u8

At Babcock Ranch, the roads are designed to flood during a hurricane. The town’s engineer explains how this and other hidden tactics keep the town safe even during a hundred-year storm.

How This Florida Town Survived Hurricanes Irma, Ian, Helene, and Milton

The Hidden Engineering Behind the ‘Hurricane-Proof’ Florida Town

Renewable energy, like wind and solar, has become a larger part of the overall power supply, but the grid wasn’t designed to handle it. WSJ asks a mechanical engineer for three ways to fix this. Photo: Adam Falk, Getty Images

https://m.wsj.net/video/20250602/36798ac3-98c8-49d4-aa3a-1ecf2e089061/2/hls/manifest-hd-wifi.m3u8

Renewable energy, like wind and solar, has become a larger part of the overall power supply, but the grid wasn’t designed to handle it. WSJ asks a mechanical engineer for three ways to fix this.

Why Wind And Solar Make Grids More Vulnerable to Blackouts

About 100 years ago, Los Angeles had one of the best mass-transit systems in the country. But today, taking the train often means multiplying your travel time. WSJ asked a transit expert how to fix it. Photo Illustration: MacKenzie Coffman

https://m.wsj.net/video/20250515/9111e142-5949-4c09-b664-352ba495a20a/2/hls/manifest-hd-wifi.m3u8

About 100 years ago, Los Angeles had one of the best mass-transit systems in the country. But today, taking the train often means multiplying your travel time. WSJ asked a transit expert how to fix it.

Transit Expert Explains Why Rail in Los Angeles is Slow and How to Fix It

Transit Expert Explains How to Build a Subway in a Car-Centric City

From hidden magnetic fields to the way ink bleeds across the paper, WSJ sits down with a leading currency expert to explore the techniques used to prevent counterfeiting and forgery. Illustration: George Downs/The Wall Street Journal

https://m.wsj.net/video/20250411/b799f0e6-811e-4c07-bed8-e6b16cc26c97/2/hls/manifest-hd-wifi.m3u8

From hidden magnetic fields to the way ink bleeds across the paper, WSJ sits down with a leading currency expert to explore the techniques used to prevent counterfeiting and forgery.

The Hidden Anti-Counterfeiting Technology Protecting the U.S. Dollar

The Hidden Technology Protecting 55 Billion U.S. Bank Notes

Los Angeles International Airport is one of the busiest airports in the world, and now it’s getting $30 billion in renovations. An airport transit expert explains if it can fix its notorious traffic. Photo Illustration: MacKenzie Coffman

https://m.wsj.net/video/20250311/2efb4c15-6efc-4957-ba30-80e3e6725ee2/1/hls/manifest-hd-wifi.m3u8

Los Angeles International Airport is one of the busiest airports in the world, and now it’s getting $30 billion in renovations. An airport transit expert explains if it can fix its notorious traffic.

Why Los Angeles International Airport’s Traffic Is So Bad and How to Fix It

Travelers Hate LAX. Here’s How an Airport Expert Would Fix It.

A $560 million renovation of the New Orleans Superdome was completed ahead of Super Bowl LIX. The architect behind the plan explains how stadium design is evolving to create more revenue streams. Photo Illustration: Jaden Urbi/WSJ

https://m.wsj.net/video/20250205/19b18b0d-4d81-42dc-b030-37f07c621d97/1/hls/manifest-hd-wifi.m3u8

A $560 million renovation of the New Orleans Superdome was completed ahead of Super Bowl LIX. The architect behind the plan explains how stadium design is evolving to create more revenue streams.

How Super Bowl 2025’s Stadium Was Designed to Maximize Profit

Are you an expert at navigating airports? Chances are, you’re actually being subtly guided by design techniques meant to keep crowds moving. WSJ asked an architect to explain. Photo Illustration: MacKenzie Coffman

https://m.wsj.net/video/20241220/bb333654-2eca-4424-bdd3-4ede81fb5f24/4/hls/manifest-hd-wifi.m3u8

Are you an expert at navigating airports? Chances are, you’re actually being subtly guided by design techniques meant to keep crowds moving. WSJ asked an architect to explain.

Architect Explains Subtle Airport Design Tricks That Guide Travelers

Why Airport Architects Don’t Want Travelers to Depend on Signs

Many cities around the world are dangerously loud. Raj Patel, an acoustics expert who helped design Manhattan’s Little Island waterfront park, explains how noise pollution from traffic, trains and other sources can be minimized. Photo Illustration: Getty

https://m.wsj.net/video/20241209/95d33203-961d-4431-ba82-1ad90544e3b3/1/hls/manifest-hd-wifi.m3u8

Many cities around the world are dangerously loud. Raj Patel, an acoustics expert who helped design Manhattan’s Little Island waterfront park, explains how noise pollution from traffic, trains and other sources can be minimized.

Noise Pollution Can Be Deadly. Here’s How an Acoustics Engineer Would Fix It.

How an Acoustics Engineer Would Redesign Cities to Eliminate Noise

From the width of the doors, to the position of the handholds, minor tweaks to a train’s design can dramatically change passenger flow and comfort. So what does a perfected commuter train look like? Photo Illustration: George Downs/The Wall Street Journal

https://m.wsj.net/video/20241017/16d0ae74-670d-4334-b4e3-1d59286ae383/1/hls/manifest-hd-wifi.m3u8

From the width of the doors, to the position of the handholds, minor tweaks to a train’s design can dramatically change passenger flow and comfort. So what does a perfected commuter train look like?

A Train Designer Explains How to Perfect the Commuter Train and Subway Car

A Train Architect Designs the Perfect Commuter Train

An infamous interchange in Breezewood, Pa., forces drivers through a miles-long detour. But redesigning it could cripple the town’s economy, which depends on the visitors. WSJ explains how to fix it. Photo: MacKenzie Coffman

https://m.wsj.net/video/20240828/f6fc1466-9d68-407f-9da2-5b05a756eced/1/hls/manifest-hd-wifi.m3u8

An infamous interchange in Breezewood, Pa., forces drivers through a miles-long detour. But redesigning it could cripple the town’s economy, which depends on the visitors. WSJ explains how to fix it.

Transportation Engineer Redesigns This Iconic Road in Breezewood, Pa.

How to Fix One of the Most Famous Traffic Chokepoints in the U.S. 

New York City invested $7.6 billion on flood-proofing its subway system—yet it still floods. Now, it plans to spend another $1 billion on a raft of new measures. Here’s what other cities might learn from their efforts. Photo: Illustration: George Downs/WSJ

https://m.wsj.net/video/20240731/bf41313d-bf5f-45ed-aab5-853aae32503d/1/hls/manifest-hd-wifi.m3u8

New York City invested $7.6 billion on flood-proofing its subway system—yet it still floods. Now, it plans to spend another $1 billion on a raft of new measures. Here’s what other cities might learn from their efforts.

Why $7.6 Billion of Flood-Proofing Couldn’t Keep NYC’s Subways Dry

From the shape of the line you wait in to the size of the concession stand menu, nearly every square foot of major event venues are designed to prioritize safety and boost revenue. Photo: Getty Images

https://m.wsj.net/video/20240705/f12d26d7-8617-4ef8-80ad-27daa158a057/1/hls/manifest-hd-wifi.m3u8

From the shape of the line you wait in to the size of the concession stand menu, nearly every square foot of major event venues are designed to prioritize safety and boost revenue.

Good Crowd Control Can Boost Safety and Profits. These Tactics Can Help.

The Invisible Tactics Used to Control Crowds and Boost Profits

Mountain roads aren’t built very often because they’re costly and complicated. WSJ traveled to Colorado, where a structural engineer walked through the process of designing steep inclines and sharp turns in places like the Rocky Mountains. Photo: Amber Bragdon

https://m.wsj.net/video/20240117/1fa8043e-73ef-47de-ab97-713c666f8e43/1/hls/manifest-hd-wifi.m3u8

Inside the Costly, Complicated Process of Building a Mountain Road

How to Design a Mountain Road That’s Less Hazardous in Winter

Venice spent about $6 billion on a mobile floodgate system that can block high tides from inundating the city. But it won’t be enough. WSJ explores potential solutions to protect the “floating city” from being overrun by water. Photo illustration: MacKenzie Coffman

https://m.wsj.net/video/20240105/127cf07e-0c35-4c7c-a4a0-3916035e51da/1/hls/manifest-hd-wifi.m3u8

Venice Is Flooding More than Ever. An Engineer Explains How to Save the City.

Venice Keeps Flooding. Here’s How an Engineer Would Solve It.

Malaysia’s Merdeka 118 will become the second tallest skyscraper in the world in 2024. An elevator engineer expert breaks down what’s involved in designing an elevator system that meets people’s expectations while also balancing cost and space. Photo illustration: MacKenzie Coffman

https://m.wsj.net/video/20230906/43be8815-577d-4665-89b7-78a711f8fb2e/1/hls/manifest-hd-wifi.m3u8

Elevator Expert Explains ‘People Flow’ in World’s Soon-to-Be Second Tallest Building

An Elevator Expert Explains How to Move People Up 118 Floors, Fast

Many U.S. highways are plagued by outdated highway infrastructures and interchanges, which cause congestion and delays. Transportation engineer Varanesh Singh analyzes the worst bottleneck in America and possible solutions that could improve traffic flow. Photo illustration: Herrine Ro

https://m.wsj.net/video/20230720/fda6d1e3-fce0-4afc-9728-a2d988ef9dd5/2/hls/manifest-hd-wifi.m3u8

Transportation Engineer Explains How to Minimize Congestion at the Worst Bottleneck in U.S.

A Transportation Engineer's Solution to America's Worst Bottleneck

Economy airplane seats push many passengers into positions that are uncomfortable and sometimes bad for their health. We spoke to an ergonomics expert about how to redesign airplane seats to support fliers better. Illustration: Michael Tabb

https://m.wsj.net/video/20230417/b9d8b044-ab7b-48eb-9c70-b1f2dd92c88d/1/hls/manifest-hd-wifi.m3u8

How Airplane Seats Can Be Ergonomically Improved

Why Airplane Seats Are So Uncomfortable and How to Improve Them

Airplane ticket prices are going up, yet economy seat sizes are shrinking. Here’s how you can find a more comfortable position for your in-flight snooze in coach.

https://m.wsj.net/video/20260415/3afb814a-decc-4269-8454-0b64cb7c62de/2/hls/manifest-hd-wifi.m3u8

Pro Perfected