Michael Pershan

September 15, 2012

How much faster are runners these days?

Edwin Ulmer

September 15, 2012

How much faster have we become?

Nathan Kraft

September 16, 2012

Why did the guys in B&W video look like they won, but had slower times? And were their legs moving faster? Something wrong with the video?

Dan Meyer

September 17, 2012

How have runners improved over the years?

Adam Blomberg

September 27, 2012

Why did the left video show the sprinters finish first?

Timon Piccini

September 29, 2012

Who is faster?

Debbie Barker

October 19, 2012

What's the fastest man will ever run this in? How do we know?

David Albertsen

October 30, 2012

Compare world record times, see if there is a trend over time that can be graphed or modeled?

Brad Watts

December 11, 2012

How much faster does "being broadcast in black in white" make you?

Andrew Stadel

December 12, 2012

Why were there so many times of 10.4 seconds on the left video? Where's the hundredth of a second?

Jim Anderson

January 03, 2013

How fast was the black and white movie sped up?

Stephanie

June 21, 2013

How many times faster are the runners in the second video?

Ignacio Mancera

July 11, 2013

How fast are they running?

Alden Sorenson

July 26, 2013

How much faster is the world record now?

Michelle Bailey

July 29, 2013

How much father did the B&W runner have to go, when the color runner crossed the finish line?

Mark Roddy

October 26, 2013

But ... the starts were not temporally synchronized. Why, oh why?

Madelyne Bettis

June 23, 2014

How much faster is Carl Lewis than the other guy?

catherine simpson

June 24, 2014

how fast are they going

Beth Norris

September 15, 2014

IS time constant?

Samantha Torrey

October 22, 2014

How fast were they running?

Andrew J Sommer

July 16, 2015

Why are athletes always gettin better and better every year?

leslie blair

August 19, 2015

Which group had a faster average time

Tricia Krumbach

August 21, 2015

Why do people run faster now?

Eric Shane

January 02, 2016

What was the time of the older runners?

Ben Rooney

April 28, 2016

Given the rate of increase, how fast will 100m sprinters be in 2050, 2100?

Beverly Smith

May 05, 2016

who's the fastest?

Neil Stephens

July 12, 2016

Would the winner of the old Olympics beat make the top 8 in the other?

James Walker

August 06, 2016

Are people faster now?