Does antimatter fall down or up?
https://www.economist.com/science-and-technology/2018/09/22/physicists-investigate-why-matter-and-antimatter-are-not-mirror-images
Spoiler alert: Probably: down... but maybe: up
#science #physics #cern
NZ travellers refusing digital search now face $5000 Customs fine
Hey guys look at what China & Russia is doing, so authoritarian, nothing like our beautiful democracy over here...
Elderly Mathematicians (usually retired) really amaze me. I am not used to talking to someone in their 90's about such advanced topics. It is a bit surreal and it makes me realize really quickly that I have this innate prejudice against older people where I just expect them to not be too sharp when it comes to pure logic or advanced education. Don't get me wrong they can be very wise, valuable and insightful, and I knew that. Its just so surreal and weird and eye opening to see them go toe tow with me (and even better than me) on advanced math!
If you cant tell I had a really cool conversation just now on math (too advanced to really get into).
@Atom Ok so rough estimate would be from the percentage of factory farms raising beef. So seems about 75% of beef is "factory farmed" in america. So probably something like ~25% of beef in the USA is free range. So not an insignificant percentage at all. Though I'll admit much smaller than it should be if we are trying to optimize food production.
Though i guess if we really want to pick this apart we need to break it down by calorie not by weight. 1KG of beef provides far more calories than 1KG of most plants. So we would have to dig a bit deeper to really see what the numbers are saying here.
@Atom Well yes and no. I dont know the exact numbers but I suspect it accounts for maybe half of all beef production. Pretty much all beef from the midwest would fit in this category. Let me see if i can research and get some numbers...
I am all about Professor Zvezdelina Stankova right now. Her lectures on mathematics are brilliant, easy to understand, and i love that smirk she always gets when she reveals a really intriguing proof. I hope I get to see her in person one day.
"rm -rf /" is the most versatile command you have. Some of the miracles it can perform simply by running it.
* gets all test coverage in any language to 100%
* Performs compression at an infinite compression ratio.
* Completely secures your system against hackers
* Reduces boot time to a fraction of a second
* Encrypts all your data using a completely fool proof algorithm that can never be cracked
* Completely protects your system against lost data in the future, if you ever loose a file just recreate it using a zero-fill and youll restore it perfectly!
I had a novel (I think) realization about Euler Lines that I think may lead to a new proof WRT the circumcenter, orthocenter, and centroid.
The theory right now (which I tested with a crude simulation) is that if you take an equilateral 2d triangle and represent it in 3d space. Then draw a line perpendicular to the plane of the triangle and through its center. Then as you change perspective in the 3d space so that the angles of the triangle are distorted to appear to match some arbitrary triangle then the apparent orientation of the line will match the Euler Line as it would be drawn classically (in 2D).
So if i can represent the points as 3D values using complex numbers I think i can do some fancy math to calculate these points and the euler line in a novel new way.
I was reading the help files of a well-known commercial microwave FEA package and it suggested calculating characteristic impedance from the power and voltage rather than finding the current directly.
This way doesn't require surface normals or line integrals which my previous methods did, so it's probably better (easier to do anyway). I've added this into my TEM mode post - https://comphysblog.wordpress.com/2018/09/06/tem-mode-analysis-with-fenics/
Why do sunflowers use the Golden Ratio to define their seed arrangement? Good explanation:
#math #mathematics @science #STEM
Jeffrey Phillips Freeman
Innovator & Entrepreneur in Machine Learning, Evolutionary Computing & Big Data. Avid SCUBA diver, Open-source developer, HAM radio operator, astrophotographer, and anything nerdy.
Born and raised in Philadelphia, PA, USA, currently living in Utrecht, Netherlands, USA, and Thailand. Was also living in Israel, but left.
Pronouns: Sir / Mister
(Above pronouns are not intended to mock, i will respect any persons pronouns and only wish pronouns to show respect be used with me as well. These are called neopronouns, see an example of the word "frog" used as a neopronoun here: http://tinyurl.com/44hhej89 )
A proud member of the Penobscot Native American tribe, as well as a Mayflower passenger descendant. I sometimes post about my genealogical history.
My stance on various issues:
Education: Free to PhD, tax paid
Abortion: Protected, tax paid, limited time-frame
Welfare: Yes, no one should starve
UBI: No, use welfare
Racism: is real
Guns: Shall not be infringed
LGBT+/minorities: Support
Pronouns: Will respect
Trump: Moron, evil
Biden: Senile, racist
Police: ACAB
Drugs: Fully legal, no prescriptions needed
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