UCSD Physicist Uses Math to Beat Traffic Ticket

A physicist at the Univeristy of California San Diego used his knowledge of measuring bodies in motion to show in court why he couldn’t be guilty of a ticket for failing to halt at a stop sign. The argument, a four-page paper delving into the differences between angular and linear motion, got the physicist out of a \$400 ticket.

Read his paper titled “The Proof of Innocence.”

She brought you something special when she came here, didn’t she?
That’s what you hold on to. That’s how you keep her alive.

andrew scott

what are you doing

you are moriarty

not castiel

but it’s so hot

yes *_*

James Moriarty is not on the side of the angels, but he is one.

You hair looks so sexy pushed back. Tumblr, will you please tell him his hair looks sexy pushed back?

You smoldering beast.

“From now on, you will call me ‘Sir Benedict’. You have been a very naughty girl, my dear. Come lie down over my lap and I’ll give you what you need.”

:O IM ON MY WAY.

12,529 plays

“Brilliant!”

Suggested by the always brilliant shappeyhappy.

CAN’T HELP BUT SMILE LIKE A CRAZY PERSON WHEN I LISTEN TO THIS!

;__; <3

This man makes me so frustrated. Blargh.

what is this?!?

thank you Sarah, just, thanks

e1n:

BECAUSE I HAVE NO LIFE AND THIS IS REALLY BOTHERING ME…

The prevailing theory on Tumblr on how Sherlock survived the fall was that he managed to land in a laundry truck.

Benedict Cumberbatch is 1.84 meters tall and by using his body you can measure how far from the building he would have had to jump to make it into the truck. Roughly 7.32 meters.

Sherlock is standing on the Pathological Department of St. Bartholomew’s Hospital. Google Street View shows what appears to be Routemaster double-decker buses which are 4.38 meters tall. The building therefore is roughly 14.6 meters.

You can use Pythagoras’ theorem to calculate the distance which is 16.33 meters. FYI: The World Record for men’s long jump is 8.95 meters and that was done with a running start. Sherlock flopped over the edge with no horizontal directional speed. I don’t think it’s possible for the laundry truck theory.

EDIT: how much time he had to “steer” towards the truck while falling.

Time = √ 2(height)/gravity
Time = √ 2(14.6m)/9.8 m/s²
Time = √ 29.2m/9.8 m/s²
Time = √ 2.98 m/s²
Time = 1.73 seconds

Sherlock was falling for 1.73 seconds.

Question: Can you jump off a 14.6 meter building and land in a truck full of laundry 7.23 meters away in 1.73 seconds?

HOLY SHIT MATH AND PHYSICS

THIS IS LEGIT BECAUSE THEY USED MATHEMATICS

I am so bad at math but I appreciate it. This is QUALITY and jeez even visual aids YES THIS IS HOW I SHOULD HAVE LEARNED GEOMETRY

Sorry to burst everyone’s bubble but this is not quite right.

People don’t fall in straight lines, they fall in parabolas. So Pythagoras has nothing to do with this. What we need is projectile motion physics.

The dark red is the path he would actually take.

So using these figures it still takes 1.73 seconds to fall vertically 14.6m with an acceleration of 9.8 ms-1.

But travelling horizontally there is no acceleration or deceleration. To travel the 7.32m to the truck Sherlock would only have to take off from the roof at 4.23 ms-1. (Because of air resistance he may have fallen slower and taken a longer time therefore this number may be even lower). Average human walking speed is between 4 to 6 ms-1 (I couldn’t find an exact number) so for Sherlock to have reached the truck in that time he would only have to step off. By falling the way he did it looks like he didn’t push off but there is actually a lot more horizontal velocity than if he had just stepped so he could actually reach the truck.

Also this explains why Sherlock chose such a tall building. If the height wasn’t as large he couldn’t have made it that distance to the truck.

tl;dr: Sherlock could have made it to the truck without any particular effort. The truck theory is still viable.

I’m going to regret jumping on this, but the Parabola theory above is the correct one.  You don’t fall in a straight line like what the original theory said.

That said, in order to make 7.32m of horizontal displacement, you need 4.23m/s of horizontal speed, which is NOT walking speed.  According to Wikipedia (on Walking), average human walking speed is 3.1mph, or 1.4m/s.  4.23m/s amounts to about 9.5mph, which is a running speed.  If you don’t believe me, get on a treadmill and set the “speed” to 9.5.  I guarantee you’ll be running like hell.

Taking into account air resistance and all that shit, I’d imagine he’d be pretty lucky to be able to land on the truck.  But even if he was that lucky, landing on the back of that truck will really break some shit.  There has to be a more elegant solution to this, although it was really really suspicious that the truck just drove by after a person jumped off the building and landed next to it.

I’m more intrigued by this:

The truck went missing in one scene. Then it reappeared and drove away, but in the following cut, the truck was back to where it was when it first started.

Maybe it was just badly edited.  But maybe…

Well this is a lot to think about…