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Author Topic: What are the world's top 10 most recognizable scientific equations?  (Read 2429 times)

Offline evan_au

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Brian Cox suggests:
#1: E=mc2
#2: F=ma
#3: ??

What do you nominate as a world's most recognizable scientific equations?

Brian Cox is a physicist. "Water=H2O" is a very widely a recognized statement in chemistry, and it does contain an "=", but does it qualify as an equation?


 

Offline Colin2B

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"Water=H2O" is a very widely a recognized statement in chemistry, and it does contain an "=", but does it qualify as an equation?
It is an equivalence, but I wouldn't call it an equation. I think an equation ought to be something that is solveable, or returns different values depending on the variables. What do you think?
 

Offline Space Flow

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13da804bb6ba648eeb598ba1ab037dce.gif
I too think an equation should be something that needs to be solved to have an answer, not just be the answer.
 

Offline Colin2B

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p=mv?
y=mx+c
a2=b2+c2

« Last Edit: 29/01/2016 14:16:15 by Colin2B »
 

Offline chris

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KE = ½mv2
 

Offline dhjdhj

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I think E=mc² is definitely an equation. It does tell you how much total energy is in an atom at rest regardless of whether as energy or mass. If you know the mass of say a hydrogen atom is
1.66 *10 ‾²¹grams you can work out the total energy in joules. I also think it is the number one equation certainly on T shirts
 

Offline chiralSPO

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In addition to those mentioned above,
PV=nRT
S=k*log(W)
 

Offline chris

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Of all the equations I learned in school physics, the one I use the most, and usually most weeks, is:

P = VI or P = I2R

That's definitely my top equation
 

Offline alancalverd

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mgh = ½mv2 is hugely important - basic conservation equation

F = GMm/r2 likewise, and probably better known - how the planets were formed

E = hν = hc/λ is well recognised - how energy reaches the earth

6CO2 + 6H2O 68468762664bf7f63435ea54ec87a726.gif C6H12O6 + 6O2 explains why there is life on the surface of this planet

« Last Edit: 30/01/2016 06:52:13 by alancalverd »
 

Offline Colin2B

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Of all the equations I learned in school physics, the one I use the most, and usually most weeks, is:

P = VI or P = I2R

That's definitely my top equation
Which reminds me V=IR
And for some reason y=ax3+bx2+cx+d
But who can ever forget x=-b±√(b2-4ac)/2a
Or z=a+bj
 

Offline chris

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6CO2 + 6H2O 68468762664bf7f63435ea54ec87a726.gif C6H12O6 + 6O2

I think you've hit the biggie there... most people who ever did science at school know this one!
 

Offline alysdexia

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s = s_0 + vt + at^2/2.
P = F/A.
{ρ,d} = m/V.
 

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