Tag: science

26 Posts

Could tires be filled with CO2 as an eco alternative
Feb 02, 2016

Brilliant or Bogus: Warren's CO2 Idea

Dear Car Talk

Could this be the fix for global warming? Car Talk does the math on Warren's idea to sequester excess carbon dioxide inside vehicle tires.

science tires

does the hummingbird crash into the windshield if you stop
Jun 01, 2010

Today: Tom and Ray ponder the now-famed "hummingbird" conundrum.

Dear Car Talk

In a recent column, you got the wrong answer to the "hummingbird" problem. Fifty years ago, my boss in an Air Force research laboratory used this problem to trick those who wanted to upgrade their "subprofessional" status to "professional." He...

science

How gasoline turns into carbon dioxide
May 01, 2010

How do you get 20 pounds of carbon dioxide from a gallon of gas?

Dear Car Talk

I've heard that each gallon of gas burned by a car releases about 20 pounds of CO2 into the atmosphere. I'm not a chemist, but even allowing for some creative reactions and recombinations going on, how does combusting about six and...

emissions gasoline science

brain reacts to mobile phone
Feb 21, 2010

This is your brain on a cell-phone...

Guest Bloggers

What's happening to your brain that makes cell phones create all that havoc on the roadway?

distracted driving science

studying distracted driving
Feb 20, 2010

A simple way to study driver distraction

Guest Bloggers

Is distracted driving a problem in your community? This blog describes a simple way to study driver distraction.

distracted driving science

Is antifreeze toxic to humans
Oct 01, 2009

In today's column: is antifreeze toxic to humans?

Dear Car Talk

You mentioned in a recent column that ethylene glycol (antifreeze) is toxic to animals. Is it also toxic to humans? I'm a doctor, and I prescribe a medicine for my patients that cleans out their colon called Go-Lytely (which makes...

coolant science

Applying Newton's first law to things in a moving car
May 01, 2009

Today: Tom and Ray settle a confounding physics conundrum.

Dear Car Talk

Once, on a very long, boring trip, my passenger and I were reduced to asking each other dumb questions. We came upon one question that we couldn't settle. Imagine that I'm driving along at highway speed with the air conditioner...

science

Sep 01, 2002

Does the air inside a tire rotate along with the tire?

Dear Car Talk

While driving home at mph with my daughters the other day I began to wonder if the air inside a rotating tire is actually rotating with the tire or is it stagnant inside the tire And if it is rotating...

science tires

Aug 01, 2000

How fast to you have to be going for a spoiler to be of any use?

Dear Car Talk

Are spoilers anything but a way for guys to identify a car as sporty I ask because my friend a guy is convinced that they give a driver more control by forcing the back end of the car down onto...

design science

Jun 01, 2000

How does static electricity dissipate before a gas nozzle comes in contact with a car?

Dear Car Talk

How does the static electricity that builds up on a moving car get dissipated before the gas-pump nozzle touches the fill pipe and causes a spark Just wondering -- Lawrence TOM Static electricity is dissipated through the car's tires Lawrence...

gas tanks science