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‘Furious 7’ Stunts Make A Believer Out Of Physics Expert

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By Steven Zeitchik

Los Angeles Times

(TNS)

NEW YORK — Matthew Kleban holds a doctorate in physics from Stanford, conducted postdoctorate research at Albert Einstein’s alma mater the Institute for Advanced Study at Princeton and is now part of the research group at NYU’s Center for Cosmology and Particle Physics.

So as he sat for a media screening of “Furious 7” on a recent weeknight, he had a few thoughts about what was transpiring.

The Vin Diesel-Paul Walker movie contains an abundance of seemingly Newton-defying stunts. Cars drop out of planes at a height of 10,000 feet and go right on rolling along. A man clambers atop a jack-knifed bus as it slides off a cliff, beating gravity as he leaps onto a vehicle racing past. A custom-made auto flies between skyscrapers high above Abu Dhabi.

The reaction most viewers have upon watching the movie is simple: Can any of this actually happen?

Sitting in the back of the theater, Kleban watched acutely as some of the more eye-popping stunts went down.

In one, the members of Diesel’s strike team backed cars out of an airplane, tumbling between the clouds as they screamed toward the mountain roads of Azerbaijan. Kleban studied the scene as it played, then said after the screening he didn’t see a physics-based reason why they couldn’t happen as they did on screen.

“You’d need the best equipment, and you’d need everything to go right, like landing in the exact right spot, but there’s no reason a car couldn’t parachute down and keep right on driving,” Kleban said.

The parachute would have to be designed with the highest degree of strength and size. And of course, the car would still be coming in hard even with an open parachute. But it would be able to “flare up” in the last seconds, converting its high amount of vertical speed to horizontal speed, sufficiently slowing its drop.

In fact, a long pre-parachute freakout by someone inside the car, as happens in the film, wouldn’t even be likely, Kleban added, because after a number of seconds of free fall the car would reach its terminal velocity of between 200 and 300 mph — and feel to the person inside as if they were not moving at all.

Why a few characters in the movie appeared to be spinning their steering wheel, however, was a mystery, he said; turning tires that aren’t in contact with the ground has no effect. “That didn’t really make sense,” he said, his eyes betraying skepticism.

A slight man with a serious demeanor but a sly sense of humor, Kleban spends his days exploring scientific mysteries at both the smallest levels — string theory and the like — and the largest, via cosmology; he studies cosmic bubbles, which among other things draws connections between ancient cosmic collisions and the possibility of multiple universes.

While acknowledging that “Furious 7” was a Hollywood movie and actual plausibility thus perhaps somewhat beside the point, Kleban also (prodded by a reporter) said there was value in knowing if these stunts could happen in real life, even if only under optimal conditions and long odds.

Such ambitions are supported by the stance of the filmmakers — director James Wan, producer Neal Moritz and stunt coordinator Joel Kramer — who take pride in the movie’s practical effects as well as that, unlike many Hollywood tent poles, their movie exists in the real world, albeit one with significantly more machine guns and global vendettas.

Other scenes played out on screen as Kleban maintained a close eye. He watched Diesel’s Dom Toretto accelerate through a ballroom in a Lykan HyperSport high above Abu Dhabi. Kleban seemed slightly troubled, and back in his office the next day, with the help of pen and paper, came to understand why.

In the stunt sequence, Dom drives the Lykan around a ballroom and through a window dozens of stories in the air, crashing through the window of the next building, then careening into some fine art, launching the car back out another window and into the air again and landing in a third building. (And you thought your last flight was bumpy.)

Even a multimillion-dollar vehicle, Kleban noted, would likely be traveling no faster than 60 mph when it crashed out of the first window.

And a vehicle traveling at 60 mph through the air would need about a second to bridge the gap of roughly 100 feet between the (well-documented ) first two Abu Dhabi buildings — an unfortunately long time frame in which, Kleban calculated, the car would also be plummeting vertically to the tune of about 17 feet.

“And if you a drop any car from a height of 17 feet, it would very likely smash the car,” he said.

In a hypothetical environment where vertical velocity didn’t exist, the car could, he noted, survive as it entered the second building, and be able to pick up enough speed there so that it could get up to 80 or 90 mph for its Boeing-like voyage between the second and third buildings. That would ensure it would be airborne for a manageable half-second. Only now there would be another problem.

In the scene, Dom jumps out of the car at the last instant and slides right up to the ledge without going over (the car does). But Dom is of course going as fast as the car when he leaps out, and even if said vehicle had somehow managed to slow to 40 mph as it slid across the floor in the third building, humans cannot stop on a dime.

Paradoxically, it was one of the more earthbound stunts that made Kleban the most skeptical — one that happens right on the streets of downtown L.A.

The scientist was visibly leery as he watched a climactic car chase in which two vehicles driven at high speeds by members of Dom’s team converge from different directions on the same intersection, then doughnut around in such a way that they actually are able to pass a team member from the window of one car to the next.

“Yeah, that couldn’t happen,” Kleban said after the screening ended. Basically, he said, a car couldn’t be thrown into a spin as it approached an intersection without the forward momentum carrying it dozens or hundreds of feet in the direction it was already going, while the other car did the same in the other direction. The vehicles would end up spinning as much as a block apart.

For all the inherent absurdity of a Hollywood popcorn picture — and despite Kleban’s empiricist’s skepticism — he said that he thought “Furious 7” acquitted itself rather well.

“A lot of these issues don’t seem that problematic in the end,” he said. “If you just had the buildings a little closer together or didn’t have the car going over a ledge while the driver stops himself, a lot of this could actually happen.”

Aware that this ran counter to many viewers’ gut instincts, he continued.

“I think if you’re watching it, it doesn’t seem possible, but one of the things about science is that it’s amazing how bad our intuitions are about what’s possible. We have a tendency to believe we know what’s possible, but our intuition is based on our experience, and we don’t have a lot of experience with cars falling out of airplanes.”

He said physics and its equations offered proof to supplement and counter that experience. Well, the basic form of physics, anyway. Kleban’s own specialized study, in realms like black hole singularities and cosmological constants, was unlikely to pay dividends with understanding the film franchise — so far.

“Maybe in ‘Furious 8,’” he said, “Vin Diesel could be dealing with the multiverse.”

©2015 Los Angeles Times

Visit the Los Angeles Times at www.latimes.com

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