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Two pictures in one background
December 24th, 2020
typography
backgrounds
watermark
Why doesn't this perpetual motion machine work?
August 1st, 2022
electromagnetism
newtonian-mechanics
energy-conservation
perpetual-motion
Why does a bucket of Water weigh more than a bucket of Air?
August 1st, 2022
condensed-matter
water
physical-chemistry
Putting multiple algorithm2e procedures in figure
August 1st, 2022
algorithm2e
How many fixed points in a permutation
August 1st, 2022
probability
combinatorics
derangements
Topology of pointwise convergence and point-open topology are equivalent
August 1st, 2022
general-topology
Add text right below the algorithms
January 28th, 2020
footnotes
algorithm2e
Show that $\langle 2,x \rangle$ is not a principal ideal in $\mathbb Z [x]$
August 15th, 2022
abstract-algebra
ring-theory
ideals
Limit of composite functions
August 1st, 2022
limits
functions
proof-verification
function-and-relation-composition
Question about all the homomorphisms from $\mathbb{Z}$ to $\mathbb{Z}$
August 1st, 2022
abstract-algebra
ring-theory
self-learning
What is going on in the photon-photon scattering Feynman diagram?
September 10th, 2020
particle-physics
photons
quantum-electrodynamics
feynman-diagrams
Can't find mistake in an easy proof.
August 1st, 2022
proof-verification
proof-writing
Does there exist a Connected Locally Euclidean Space that is not second countable?
August 1st, 2022
general-topology
examples-counterexamples
connectedness
second-countable
Intersection of point normal to plane
April 20th, 2020
vectors
plane-curves
Entropy and chemical potential of an ideal gas
August 1st, 2022
statistical-mechanics
entropy
ideal-gas
Find the number of elements in the union of three sets
November 3rd, 2020
elementary-set-theory
Distribution of the coefficient of variation of independent normal variables?
August 11th, 2022
statistics
probability-theory
Normal subgroups of a group of order 12
December 17th, 2022
abstract-algebra
Show that $\nabla\Delta = E$.
August 15th, 2022
numerical-methods
Shaken vs stirred, is there a difference?
August 15th, 2022
fluid-dynamics
Shall I review a paper for my advisor?
August 15th, 2022
publications
peer-review
journals
advisor
Prove Nth derivative expression by induction
November 2nd, 2020
derivatives
proof-verification
induction
Two electrons exchanging a photon
August 1st, 2022
photons
electrons
quantum-electrodynamics
virtual-particles
Calculating the area of an irregular polygon
August 1st, 2022
calculus
geometry
analytic-geometry
how to indent the first line of an mdframed environment?
August 1st, 2022
indentation
mdframed
Is there a sphere parallel line?
July 23rd, 2022
geometry
does linearity of inner product hold for infinite sum?
August 1st, 2022
inner-products
$L^{\infty}$ norm is bounded by $L^2$ norm for holomorphic functions
August 1st, 2022
complex-analysis
Shall remainder always be positive?
August 15th, 2022
elementary-number-theory
modular-arithmetic
Using the \tab Command
March 3rd, 2021
spacing
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Recents
What age is too old for research advisor/professor?
How much solvent do you add for a 1:20 dilution, and why is it called 1 to 20?
How many weeks of holidays does a Ph.D. student in Germany have the right to take?
Why higher the binding energy per nucleon, more stable the nucleus is.?
What happen if the reviewer reject, but the editor give major revision?
Coordination number of 3D close packing
Why do universities check for plagiarism in student assignments with online content?
pKa = pH for strong acid — strong base?
Anonymous sites used to attack researchers. What to do about it?
Why does [Ni(gly)2] show optical isomerism despite having no chiral carbon?
I downoaded articles from libgen (didn't know was illegal) and it seems that advisor used them to publish his work
How do superwomen find time?
What is the chemical formula of ghee?
Masters in mathematics after bachelors in mechanical engineering
Advantages or disadvantages of submitting to the new APS open access PRResearch journal?
Why energy is released when an electron is added to a neutral atom?
Time constant of $RC$ circuit with more than one capacitor
Why is CH4 Nonpolar but CH2Cl2 is polar?
Which of the compounds has the highest percentage of enol?
Article waiting for AE assignment for too long?
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