# Theories, processes, solutions, etc. named for 2 people **URL:** \ **Category:** In My Humble Opinion\ **Created:** [June 16, 2019, 3:27pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610 "2019-06-16T15:27:58Z")\ **Posts on this page:** 20\ **Page:** 1
**Author:** ![Jackknifed\_Juggernaut](https://avatars.discourse-cdn.com/v4/letter/j/9de053/32.png) [@Jackknifed\_Juggernaut](https://boards.straightdope.com/u/Jackknifed_Juggernaut)\ **Post date:** [June 16, 2019, 3:27pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/1 "2019-06-16T15:27:58Z")
…with a general description to prevent people from having to google it. Modigliani-Miller theorem - the basis for corporate financial structure management; shows that, under perfect conditions, a company’s value is not affected by how it’s financed Black-Scholes model - a mathematical model used to determine the value of a financial derivative Bornhuetter-Ferguson technique - a method of forecasting insurance losses by actuaries Duckworth-Lewis method - a calculation used in cricket to determine the winner of a shortened match ---
**Author:** ![Llama\_Llogophile](https://avatars.discourse-cdn.com/v4/letter/l/49beb7/32.png) [@Llama\_Llogophile](https://boards.straightdope.com/u/Llama_Llogophile)\ **Post date:** [June 16, 2019, 3:40pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/2 "2019-06-16T15:40:11Z")
[The Dunning / Kruger Effect](https://en.wikipedia.org/wiki/Dunning%E2%80%93Kruger_effect) [The Teller / Ulam Design](https://en.wikipedia.org/wiki/History_of_the_Teller%E2%80%93Ulam_design) [The Schmidt / Cassegrain telescope](https://en.wikipedia.org/wiki/Schmidt%E2%80%93Cassegrain_telescope) ---
**Author:** ![Thudlow\_Boink](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/thudlow_boink/32/320_2.png) [@Thudlow\_Boink](https://boards.straightdope.com/u/Thudlow_Boink)\ **Post date:** [June 16, 2019, 3:54pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/3 "2019-06-16T15:54:38Z")
The ones happen to spring to my mind right away are: [The Schartz-Metterklume Method](https://literature.fandom.com/wiki/The_Schartz-Metterklume_Method) - a method to make children understand history by acting it out themselves (fictitious, from the short story of that name by Saki) [Navier-Stokes equations](https://en.wikipedia.org/wiki/Navier%E2%80%93Stokes_equations) - equations in physics that describe the motion of viscous fluid substances [Calabi–Yau manifold](https://en.wikipedia.org/wiki/Calabi%E2%80%93Yau_manifold) - a type of topological structure used in theoretical physics [Gauss-Jordan elimination](https://www.mathwords.com/g/gauss-jordan_elimination.htm) - a method of using matrices to solve linear systems of equations ---
**Author:** ![ftg](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ftg/32/2801_2.png) [@ftg](https://boards.straightdope.com/u/ftg)\ **Post date:** [June 16, 2019, 4:40pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/4 "2019-06-16T16:40:42Z")
The [Hall–Héroult process](https://en.wikipedia.org/wiki/Hall%E2%80%93H%C3%A9roult_process) for smelting Aluminum. Independently invented by 22 year-olds. Richard Feynman is a well-hyphenated person. Some examples: [Feynman–Kac formula](https://en.wikipedia.org/wiki/Feynman%E2%80%93Kac_formula) [Feynman–Stueckelberg interpretation](https://en.wikipedia.org/wiki/Antiparticle#Feynman%E2%80%93Stueckelberg_interpretation) [Hellmann–Feynman theorem](https://en.wikipedia.org/wiki/Hellmann%E2%80%93Feynman_theorem) [Bethe–Feynman formula](https://en.wikipedia.org/wiki/Bethe%E2%80%93Feynman_formula) ---
**Author:** ![markn\_1](https://avatars.discourse-cdn.com/v4/letter/m/f9ae1b/32.png) [@markn\_1](https://boards.straightdope.com/u/markn_1)\ **Post date:** [June 16, 2019, 4:50pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/5 "2019-06-16T16:50:46Z")
Maybe this is cheating, but there are a few lists on Wikipedia that give dozens of answers: > **[List of scientific laws named after people](https://en.wikipedia.org/wiki/List_of_scientific_laws_named_after_people)** > > This is a list of scientific laws named after people (eponymous laws). For other lists of eponyms, see eponym. gives: Beer–Lambert law, Biot–Savart law, Cauchy–Riemann equations, Cayley–Hamilton theorem, Church–Turing thesis, Law of Charles and Gay-Lussac, Curie–Weiss law, De Bruijn–Erdős theorem, Erdős–Anning theorem, Erdős–Beck theorem, Erdős–Gallai theorem, Erdős–Kac theorem, Erdős–Nagy theorem, ok I’m getting tired of Erdős, but there’s a lot more. Then this one gives more: [List of scientific equations named after people - Wikipedia](https://en.wikipedia.org/wiki/List_of_scientific_equations_named_after_people) Adams–Williamson equation, Allen–Cahn equation, Ashkin–Teller model, Batchelor–Chandrasekhar equation, Benjamin–Ono equation, Birch–Murnaghan equation of state, Birkhoff–Rott equation, Blaney–Criddle equation, Borda–Carnot equation, Buckley–Leverett equation, Cahn–Hilliard equation, Callan–Symanzik equation, Callendar–Van Dusen equation, … I didn’t even get through the C’s on that page. And then there’s [List of scientific constants named after people - Wikipedia](https://en.wikipedia.org/wiki/List_of_scientific_constants_named_after_people) which gives a few: Copeland–Erdős constant, Embree–Trefethen constant, Erdős–Borwein constant, Euler–Mascheroni constant, Landau–Ramanujan constant, Meissel–Mertens constant, Ramanujan–Soldner constant, Sackur–Tetrode constant, Stefan–Boltzmann constant. I think I got all of them from that page. And then there’s this page, [List of equations - Wikipedia](https://en.wikipedia.org/wiki/List_of_equations) which overlaps a lot with the others, but probably has some new ones. None of them seem to mention my favorite, the Banach-Tarski paradox. ---
**Author:** ![Nava](https://avatars.discourse-cdn.com/v4/letter/n/da6949/32.png) [@Nava](https://boards.straightdope.com/u/Nava)\ **Post date:** [June 16, 2019, 4:53pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/6 "2019-06-16T16:53:51Z")
Newton-Raphson iterations; Diels-Adler reactions… ---
**Author:** ![Little\_Nemo](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/little_nemo/32/3120_2.png) [@Little\_Nemo](https://boards.straightdope.com/u/Little_Nemo)\ **Post date:** [June 16, 2019, 4:55pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/7 "2019-06-16T16:55:14Z")
The Michelson–Morley experiment disproved the existence of cosmic ether and was an important stepping stone towards Einstein’s work on relativity. ---
**Author:** ![Chingon](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chingon/32/17645_2.png) [@Chingon](https://boards.straightdope.com/u/Chingon)\ **Post date:** [June 16, 2019, 4:58pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/8 "2019-06-16T16:58:17Z")
Born-Oppenheiemer ---
**Author:** ![TSBG](https://avatars.discourse-cdn.com/v4/letter/t/77aa72/32.png) [@TSBG](https://boards.straightdope.com/u/TSBG)\ **Post date:** [June 16, 2019, 5:12pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/9 "2019-06-16T17:12:05Z")
I was curious about Duckworth-Lewis and so looked it up and discovered that it is now called Duckworth-Lewis-Stern. Disqualified! ---
**Author:** ![Jackknifed\_Juggernaut](https://avatars.discourse-cdn.com/v4/letter/j/9de053/32.png) [@Jackknifed\_Juggernaut](https://boards.straightdope.com/u/Jackknifed_Juggernaut)\ **Post date:** [June 16, 2019, 5:17pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/10 "2019-06-16T17:17:12Z")
> [@TSBG](#): > > I was curious about Duckworth-Lewis and so looked it up and discovered that it is now called Duckworth-Lewis-Stern. Disqualified! No, since it was called that one one time. In fact, Black-Scholes is now often called Black-Scholes-Merton. ---
**Author:** ![Chronos](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/chronos/32/134_2.png) [@Chronos](https://boards.straightdope.com/u/Chronos)\ **Post date:** [June 16, 2019, 5:39pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/11 "2019-06-16T17:39:25Z")
In quantum mechanics, Bose-Einstein statistics describe the behavior of one sort of particles (called “bosons”), and Fermi-Dirac statistics describe the behavior of the other sort (called “fermions”). And it’s not surprising that Erdös shows up a lot in these lists: He’s most famous for having collaborated with nearly everyone; the Kevin Bacon of academia. ---
**Author:** ![TSBG](https://avatars.discourse-cdn.com/v4/letter/t/77aa72/32.png) [@TSBG](https://boards.straightdope.com/u/TSBG)\ **Post date:** [June 16, 2019, 5:43pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/12 "2019-06-16T17:43:02Z")
> [@Jackknifed\_Juggernaut](#): > > No, since it was called that one one time. In fact, Black-Scholes is now often called Black-Scholes-Merton. I was joking, although it wasn’t obvious. I assumed someone who knew enough about cricket to know about D-L would also know the most updated version of the name. ---
**Author:** ![Two\_Many\_Cats](https://avatars.discourse-cdn.com/v4/letter/t/8dc957/32.png) [@Two\_Many\_Cats](https://boards.straightdope.com/u/Two_Many_Cats)\ **Post date:** [June 16, 2019, 5:54pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/13 "2019-06-16T17:54:17Z")
I’ve always liked the Smoot-Hawley Tariff myself. That and the Mason-Dixon Line. ---
**Author:** ![markn\_1](https://avatars.discourse-cdn.com/v4/letter/m/f9ae1b/32.png) [@markn\_1](https://boards.straightdope.com/u/markn_1)\ **Post date:** [June 16, 2019, 6:07pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/14 "2019-06-16T18:07:53Z")
> [@Chronos](#): > > And it’s not surprising that Erdös shows up a lot in these lists: He’s most famous for having collaborated with nearly everyone; the Kevin Bacon of academia. There’s even an [Erdős number](https://en.wikipedia.org/wiki/Erd%C5%91s_number) for mathematicians, similar to the Bacon number for actors. Ultra-nitpick since you went to the trouble of adding an umlaut to his name – his name actually uses a [double acute accent](https://en.wikipedia.org/wiki/Double_acute_accent), not an umlaut/diaeresis. It’s used mainly in Hungarian, which has FOUR versions of the letter O, distinguished by different diacritics. ---
**Author:** ![Darren\_Garrison](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/darren_garrison/32/92_2.png) [@Darren\_Garrison](https://boards.straightdope.com/u/Darren_Garrison)\ **Post date:** [June 16, 2019, 6:19pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/15 "2019-06-16T18:19:23Z")
[Einstein-Rosen bridge](https://en.wikipedia.org/wiki/Wormhole). ---
**Author:** ![naita](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/naita/32/5862_2.png) [@naita](https://boards.straightdope.com/u/naita)\ **Post date:** [June 16, 2019, 6:21pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/16 "2019-06-16T18:21:59Z")
[The Birkeland-Eyde process](https://en.wikipedia.org/wiki/Birkeland%E2%80%93Eyde_process) was used to start Norwegian production of Nitrogen fertilizer. ---
**Author:** ![ftg](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/ftg/32/2801_2.png) [@ftg](https://boards.straightdope.com/u/ftg)\ **Post date:** [June 16, 2019, 7:05pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/17 "2019-06-16T19:05:00Z")
Just came across another Feynman law: [Wheeler–Feynman absorber theory](https://en.wikipedia.org/wiki/Wheeler%E2%80%93Feynman_absorber_theory) Itself based on the [Abraham–Lorentz force](https://en.wikipedia.org/wiki/Abraham%E2%80%93Lorentz_force) and inspired the [Hoyle–Narlikar theory of gravity](https://en.wikipedia.org/wiki/Hoyle%E2%80%93Narlikar_theory_of_gravity). (The latter of which is stead-state hokum, of course.) Which brings up the question of what’s the longest connected chain of such pairs? ---
**Author:** ![Treppenwitz](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/treppenwitz/32/3445_2.png) [@Treppenwitz](https://boards.straightdope.com/u/Treppenwitz)\ **Post date:** [June 16, 2019, 7:51pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/18 "2019-06-16T19:51:16Z")
Bachman-Turner Overdrive. Do I have to provide a definition? More in the spirit of the OP, The Hatch-Waxman Act (AKA [The Drug Price Competition and Patent Term Restoration Act](https://en.wikipedia.org/wiki/Drug_Price_Competition_and_Patent_Term_Restoration_Act)) defined the ANDA approval pathway for generic drugs in the US. j ---
**Author:** ![EinsteinsHund](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/einsteinshund/32/8400_2.png) [@EinsteinsHund](https://boards.straightdope.com/u/EinsteinsHund)\ **Post date:** [June 16, 2019, 10:58pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/19 "2019-06-16T22:58:11Z")
The [Baader-Meinhof phenomenon](https://en.wiktionary.org/wiki/Baader-Meinhof_phenomenon). ---
**Author:** ![Tim\_R.Mortiss](https://sea3.discourse-cdn.com/straightdope/user_avatar/boards.straightdope.com/tim_r.mortiss/32/142_2.png) [@Tim\_R.Mortiss](https://boards.straightdope.com/u/Tim_R.Mortiss)\ **Post date:** [June 16, 2019, 11:15pm UTC](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610/20 "2019-06-16T23:15:16Z")
The [Denavit-Hartenberg](https://en.wikipedia.org/wiki/Denavit%E2%80%93Hartenberg_parameters) matrix, useful in robotic kinematics. I actually new Professor Hartenberg at Northwestern when I was a grad student and he was a very old, very smart man. [Next page](https://boards.straightdope.com/t/theories-processes-solutions-etc-named-for-2-people/835610.md?page=2)