Riddle Me This: Three Light Bulbs and Three Switches
You have three switches. If you are allowed only one chance to enter the room with the three light bulbs, how can you determine which switches go with which bulbs?
The Columbia Space Shuttle Disaster
In 1981, the shuttle Columbia became the first to successfully reach space. From 1981 to 2003, Columbia carried dozens of astronauts on missions, spending a total of 300 days, 17 hours, 40 minutes, and 22 seconds in space. Columbia’s last flight was STS-107, a 16-day research mission ...
The February Ethical Dilemma: Hazardous Material
Ralph is a field technician employed by a consulting environmental engineering firm. At the direction of Engineer Patrick, his supervisor, Ralph, samples the contents of drums located...
February Pop Quiz for Engineers
Use your heart and your head! Here's the February 2021 Pop Quiz for Engineers. Are you smarter than an undergraduate?
Personal Assistants: Not Just for the 1% Anymore
The personal assistant has long been considered a benefit exclusive to the very wealthy and powerful. Today, advances in technology and a plethora of digital sites and products make interacting with your own personal assistant as easy as the touch of a button or a simple voice command ...
Riddle Me This: Colored Weights
You have a balance scale and six weights. What is the fewest number of times you need to use the balance scale in order to positively identify the heavier weight in each pair?