Hey Numeracy Nation. It’s “Movie Monday.” Since the new iPhone SE came out last week, what better way to start the week off? This 9to5Mac video explains the advantages and drawbacks of the new iPhone SE.
- Same size as the old iPhone 5/5S
- A9 processor (same as the iPhone 6S)
- M9 motion coprocessor for untethered “Hey, Siri”
- Rose Gold color availablility
- inset Apple logo
- redesigned chamfered edges (making it different than the 5/5S)
- 2GB RAM
- 12-megapixel iSight camera (no bump!)
- 4K video
- 240-fps slo-mo video
- retina flash (for forward-facing camera)
- live photos
- Apple Pay
- faster network speeds
- better battery life
And the bad…
- 1.2-megapixel FaceTime camera (same as the 5S)
- contrast ratio
- 1st generation touch ID (slower on)
- no 3D touch (which the 6S has)
- smaller screen
Conclusion? A good investment of you preferred the smaller form factor of the old 5/5S, but want many of the features of the newest 6S.
Stay tuned next week for an iPhone 7 report.
In reading about this new largest know prime number, I learned that Mersenne prime numbers are of the form 2p – 1, where the exponent p is a prime number. For example, 25 – 1, is a Mersenne prime. This is because the exponent 5 is prime and 25 – 1 = 31, which is prime. Therefor, 31 is a Mersenne prime, since it can be expressed in the form 2p – 1.
Not all numbers of this form are Mersenne numbers. For example, 211 – 1 is not a Mersenne prime. It’s not even prime. Although, the exponent 11 is prime, 211 – 1 = 2047 which is not prime. 2047 has prime factors of 23 and 89.
Also not all prime numbers are one less than a power of two, just Mersenne primes. Mersenne primes are easier for the software to test for using the Lucas-Lehmer primality test, which is based on powers of two. Because the test is so remarkably simple, the computers can test numbers faster than with any other form of prime numbers. As a result — and thanks to G.I.M.P.S. — new prime numbers are usually Mersenne primes.
Visit the website, and download the software for free. You might become famous and make some money if your computer finds a new prime!
This animation was posted a few years ago by TED-Ed. If you ever wondered about these two questions, then watch!
- How many universes are there?
- Why can’t we see evidence of alien life?
One thing is for sure, the more you learn, the more amazing the universe becomes.
For three-point Thursday, I found this tale of three brothers which presents a different viewpoint on the progressive income tax. Conservative, yes, but I think today’s youth have been inculcated with liberal dogma for so long that many don’t even know why they believe what they believe.
How do you think Harry Class feels? He earns the same hourly rate as his brothers, but he and his wife chose to work longer hours and save. How are they repaid? Tom and Dick force him to pay for their share of the neighborhood improvement project. And when Harry questions their logic, they resort to name-calling. They said that he was being unbrotherly, greedy, and selfish. What do you think? Chime in below!
Thanks to Prager U for this video!
So how much water will go over Niagara Falls in a whole day?
How many did you get right? Comment below.
If you have never heard of this man, you’re in for a treat. This is a perennial favorite of my high school students. When shown the “trick, they have a new-found respect of arithmetic. Enjoy!