# Recent Content by mfb

1. Post

### I Dawn moving to low Ceres orbit, mission extended until hydrazine runs out

[ATTACH] Image source and news The periapsis is now 35 km. There is no zero missing here. Shorter than a marathon distance. We will get very...
Post by: mfb, Jun 22, 2018 at 8:21 PM in forum: Astronomy and Astrophysics
2. Post

### Insights Calculating the Spin of Black Hole Sagittarius A* - Comments

I'm curious if the Event Horizon Telescope will have sufficient time resolution to contribute to this directly - or do they have to take a...
Post by: mfb, Jun 22, 2018 at 6:42 PM in forum: Astronomy and Astrophysics
3. Post

### Challenge Intermediate Math Challenge - June 2018

WolframAlpha finds a different solution. Note that you can simply it by choosing a different representation for the free parameter.
Post by: mfb, Jun 22, 2018 at 5:29 PM in forum: General Math
4. Post

### Challenge Intermediate Math Challenge - June 2018

I hope there is a mistake somewhere because that result looks ugly and it gets even worse if substituted back.
Post by: mfb, Jun 22, 2018 at 10:02 AM in forum: General Math
5. Post

5:12:13 was known in ancient Egypt long before Pythagoras, and 3:4:5 was known as well. What Pythagoras found was the general pattern. Examples of...
Post by: mfb, Jun 22, 2018 at 7:46 AM in forum: General Math
6. Post

### Project Euler Question 58 -- ratio of primes along both diagonals of a spiral...

My J is the length of a diagonal half without the center, primes is the number of primes corresponding to it. My code adds another side everywhere...
Post by: mfb, Jun 21, 2018 at 5:15 AM in forum: Engineering and Computer Science Homework
7. Post

### Science Jokes P2

Fixed: $$\text{If } \lim_{x \to 8} \frac 1 {(x - 8)(x - 8)} = \infty \dots$$
Post by: mfb, Jun 20, 2018 at 11:36 AM in forum: General Discussion
8. Post

### Project Euler Question 58 -- ratio of primes along both diagonals of a spiral...

((J-1)*2+1) = J*2-1. You simply missed an earlier place where it drops below 10%. def findprimes(N): ... count=0 ... if prime(4*N*N+4*N+1):...
Post by: mfb, Jun 20, 2018 at 11:29 AM in forum: Engineering and Computer Science Homework
9. Post

### Stopping distance of a car rolling down a hill

Right. This true while on the ramp already. If drag becomes important then the situation gets more complicated.
Post by: mfb, Jun 20, 2018 at 8:30 AM in forum: Introductory Physics Homework
10. Post

### Project Euler Question 58 -- ratio of primes along both diagonals of a spiral...

Where does 13296 come from? That gives you a side length of 13296*2-1.
Post by: mfb, Jun 20, 2018 at 8:06 AM in forum: Engineering and Computer Science Homework
11. Post

### Physics Looking For Research Experience in the future

Did you check the websites of the summer student programs? They tell you what is required. In general degrees from outside the EU/US can be a bit...
Post by: mfb, Jun 20, 2018 at 7:49 AM in forum: Career Guidance
12. Post

### Stopping distance of a car rolling down a hill

That needs an additional assumption about the motion (but the result is right). Where does the work to stop the car come from? Is that the same...
Post by: mfb, Jun 20, 2018 at 7:46 AM in forum: Introductory Physics Homework
13. Post

### B Multiple processes interpretation

No, because it is consistent with observations.
Post by: mfb, Jun 19, 2018 at 12:35 PM in forum: Quantum Physics