Here is the link to the Light and Color PhysicsQuest you will be completing. This is due by the end of class.
There’s nothing in physics that says the EM Drive should work, but NASA has recently confirmed that it does work. If their results can be confirmed then it would seem that physics has been broken. Whenever that happens we tend to learn the most about how the universe works.
The common explanation for how bikes stay up is conservation of angular momentum. However, this is a very small contribution to the stability of a bike. The biggest contribution is related to the engineering of the bike.
This website is currently out of date. My students should be using It’sLearning to access any current information. I will leave this site here as a source of potentially helpful information.
Let’s consider the worst case scenario. Suppose you have skinny jeans on a super skinny leg. The leg is so skinny that when you put the iPhone 6 Plus in your pocket, the fabric pulls straight down at a 90 degree angle to the phone. In this case, you would need 125 N tension in the fabric to be equivalent to the iPhone test in the lab. That’s only 28 pounds of tension, so you would think that would be ok. But wait! There are two problems. First, some jeans can only take about 28 pounds of tension before ripping (not everything is Levi tough). Second, the test at the Apple lab seemed to indicate that the iPhone could take an equivalent bending moment of 25 kg (250 N) at the center and that wouldn’t make it bend. How much does it take to bend? Who knows.
Read More… Could Skinny Jeans Bend an iPhone 6+
The Wall Street Journal swabbed money and looked at the bacteria they found growing on the bills. It’s worse than you thought.
Easily the most abundant species they found is one that causes acne. Others were linked to gastric ulcers, pneumonia, food poisoning and staph infections, the scientists said. Some carried genes responsible for antibiotic resistance.
“It was quite amazing to us,” said Jane Carlton, director of genome sequencing at NYU’s Center for Genomics and Systems Biology where the university-funded work was performed. “We actually found that microbes grow on money.”
Many people know that the supercollider at CERN has been looking for, and may have found, the Higgs Boson. What most people don’t understand, though, is what the Higgs Boson is. Here is an explanation of what the Higgs is, in comic form.