Let’s revisit Sir Isaac Newton’s cannon. In the above mentioned article we had placed a level on the cannon and shot the cannonball at 1440 feet per second parallel to the ground until it fell and bounced and rolled and came to a stop. We didn’t want to shoot it up in the air in a... Continue Reading →
Since GPS achieved Fully Operational Capability on July 17, 1995, GPS has become an essential navigational tool for civilians and military alike. Keeping the system up-to-date has proved to be a problem. Originally the system was supposed to be up and running in February of 2016 but has been delayed at least until 2023. The latest... Continue Reading →
It just moves forward. The moon isn’t stationary. It has inertia and no atmosphere in space to slow it down. It just goes. As it moves forward, the gravity of Earth tugs on it and it falls, but because it’s moving forward it misses Earth as it falls and goes around, again and again. That’s... Continue Reading →
The answer is infinite. It’s like asking how many pieces can slice out of a pie. Or like asking if I take a pie and eat half of what’s there each day, will I ever finish the pie? Longitude merely slices the planet into vertical pieces. You can have an infinite number of those slices.... Continue Reading →
This is a great question! I wondered about it myself. It turns out that every time you have GPS turned on using an Android device, Google can detect how fast you're moving. If a lot of devices indicate that traffic is moving slowly in a particular area then the conclusion is there is a traffic... Continue Reading →
No. First of all, we’re not “inside the Earth.” We are on the earth. Since the universe isn’t a “globe” and we are not inside the globe known as Earth, then we aren’t inside a globe. Unless of course you’re inside one of these: Answer requested by Sam Gibbs
This is my demonstration how I can take pieces of torn paper and combine them without tape to make a larger sheet of paper.