Other Physics Topics Forum

Post thread
Participate in expert physics discussion. Discussion on the nature and properties of matter and energy. This area is for topics that don't fit the other categories. Mainstream physics only.
Undergrad Understanding the dispersion of waves
  • · Replies 5 ·
Replies
5
Views
10K
Graduate Your guess (or some ideas) for Nobel 2019
  • · Replies 4 ·
Replies
4
Views
9K
High School Does the Earth "really" revolve round the Sun?
  • · Replies 4 ·
Replies
4
Views
9K
Undergrad What physics knowledge would be required to build a house?
  • · Replies 18 ·
Replies
18
Views
8K
Has Anyone read "Physics For Future Presidents"?
  • · Replies 7 ·
Replies
7
Views
2K
High School Will graphene become a wonder material for future inventions?
  • · Replies 5 ·
Replies
5
Views
12K
Single Trapped Atom Wins UK Science Photography Prize?
  • · Replies 22 ·
Replies
22
Views
4K
Is gravity a result of composition and temperature? Share your thoughts!
  • · Replies 17 ·
Replies
17
Views
2K
Undergrad Which Science Underpins All Understanding of the Universe?
  • · Replies 11 ·
Replies
11
Views
3K
High School Do Rocks Absorb and Utilize Solar Energy?
  • · Replies 11 ·
Replies
11
Views
13K
Graduate Is computational Physics a hard major?
  • · Replies 1 ·
Replies
1
Views
11K
Undergrad Can red blood cells be considered colloids? (soft matter physics)
  • · Replies 1 ·
Replies
1
Views
10K
High School Melting Ice Caps and Sea Level Rise: Separating Fact from Fiction
  • · Replies 11 ·
Replies
11
Views
13K
Photo Contest - MURRAY GELL-MANN (6/8-6/14)
  • · Replies 7 ·
Replies
7
Views
2K
High School Meaning of: Make everything as simple as possible, but not simpler
  • · Replies 29 ·
Replies
29
Views
91K
High School Is there any physical quantity having two different units?
  • · Replies 19 ·
Replies
19
Views
18K
Undergrad Why is Density Necessary in the Viscosity Comparison Method?
  • · Replies 1 ·
Replies
1
Views
7K
High School Physical explanation of eye contact
  • · Replies 6 ·
Replies
6
Views
2K
Graduate Understanding Lyaponov Time & Units
  • · Replies 3 ·
Replies
3
Views
10K
High School What is the object's orbital path shown in the image?
  • · Replies 9 ·
Replies
9
Views
2K
How Did Charles Kittel Impact Modern Physics Education?
  • · Replies 2 ·
Replies
2
Views
3K
Undergrad Flow Dynamics of Sluice Gates & Groynes
  • · Replies 9 ·
Replies
9
Views
16K
Graduate Understanding the Wilhelmy Plate Method for Calculating Surface Tension
  • · Replies 1 ·
Replies
1
Views
13K
Graduate Who Will Be Awarded the Nobel for QCD Now that Murray Gell-Mann Has Died?
  • · Replies 5 ·
Replies
5
Views
1K
News Are We Ready for the New Definition of the Kilogram?
  • · Replies 3 ·
Replies
3
Views
1K
Public Outreach: How Do Physicists Like Brian Greene & Sean Carroll Do It?
  • · Replies 2 ·
Replies
2
Views
9K
Graduate Derive a flow rate equation that accounts for the fluid properties?
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Steady state Vertical diffusion equation
  • · Replies 1 ·
Replies
1
Views
2K
High School Coal and total CO2 emissions in the UK
  • · Replies 20 ·
Replies
20
Views
8K
Undergrad Help with Capillary Rise Equation for Differential Equations Class
  • · Replies 1 ·
Replies
1
Views
3K
Graduate Exploring Poiseuille's Law: Pressure, Flow, and Resistance in Blood Vessels
  • · Replies 1 ·
Replies
1
Views
3K
Undergrad The Graser: Examining a Cold War Spy Story
  • · Replies 14 ·
Replies
14
Views
13K
Undergrad Stuck tray in the sink - How to separate
  • · Replies 7 ·
Replies
7
Views
11K
High School Why Does the Effective Period of a Composite Wave Remain Constant?
  • · Replies 50 ·
2
Replies
50
Views
20K
Undergrad Did bottles of wine truly get recovered from the wreck of the Titanic?
  • · Replies 27 ·
Replies
27
Views
21K
Undergrad How to find the H index of an author using Google Scholar?
  • · Replies 4 ·
Replies
4
Views
11K
Graduate What is the Effect of Influx and Efflux in Reynolds Transport Theorem?
  • · Replies 1 ·
Replies
1
Views
4K
Undergrad Can Raman spectroscopy identify every substance?
  • · Replies 4 ·
Replies
4
Views
12K
Getting Physics Lectures on an iPod
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Definition of Separable & Rules for Physical Systems: 65 Characters
  • · Replies 6 ·
Replies
6
Views
7K
Undergrad Redefining the Mass Unit: Counting Particles for Precision
  • · Replies 6 ·
Replies
6
Views
11K
Undergrad What Happens When You Play with a 3 Dollar Diffraction Grating?
  • · Replies 5 ·
Replies
5
Views
4K
Undergrad Understanding q: Lambda & S in the Equation
  • · Replies 3 ·
Replies
3
Views
7K
Undergrad Understanding the Relationship Between Mass and Matter
  • · Replies 7 ·
Replies
7
Views
8K
Undergrad How Does Reducing Time Intervals Affect Accuracy in Numerical Integration?
  • · Replies 5 ·
Replies
5
Views
5K
Undergrad The Shadow Of An Atom - False Colour Images Reveal Structure
  • · Replies 11 ·
Replies
11
Views
6K
Graduate Research styles in different branches of Physics
  • · Replies 3 ·
Replies
3
Views
5K
Graduate A new kind of radio transient: ERBs, by Ali Frolop et al.
  • · Replies 6 ·
Replies
6
Views
2K
High School Questions Regarding the Fundamental Rules of Error Analysis
  • · Replies 10 ·
Replies
10
Views
7K
Undergrad Symmetry of an exponential result from a Fourier transform
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad How to remove Ethanol from Gasoline?
  • · Replies 27 ·
Replies
27
Views
17K
News How Did Nobel Laureate David Thouless Impact Physics?
  • · Replies 2 ·
Replies
2
Views
2K
Undergrad Ionosphere: Causes of Electron Production & Recombination Reaction
  • · Replies 2 ·
Replies
2
Views
5K
High School History of the term "square-cube law?"
  • · Replies 8 ·
Replies
8
Views
5K
High School Is Cymatics a Scientifically Valid Phenomenon?
  • · Replies 7 ·
Replies
7
Views
10K
March 14 coming (Einstein, Hawking, Pi-Day)
  • · Replies 17 ·
Replies
17
Views
5K
Undergrad Why Does Subtractive Cancellation Affect Measurement Precision?
  • · Replies 1 ·
Replies
1
Views
4K
Graduate How we can explain our process of thinking by physics?
  • · Replies 3 ·
Replies
3
Views
2K
High School Defining a Vernier Caliper when a reading is already showing....
  • · Replies 4 ·
Replies
4
Views
3K
High School How Can I Measure Lumen, Efficiency, and Color Temperature of a Street Lamp?
  • · Replies 3 ·
Replies
3
Views
3K
High School What Are the Dimensions of kWh?
  • · Replies 3 ·
Replies
3
Views
5K
Undergrad Analytical Open Channel Rectangular Fluid Flow
  • · Replies 1 ·
Replies
1
Views
3K
High School What Happens to Volume Change Ratio in Caesium When Pressure Exceeds 1.6 GPa?
  • · Replies 5 ·
Replies
5
Views
3K
High School Phases of Matter: Solid, Liquid, Gas & More
  • · Replies 19 ·
Replies
19
Views
16K
High School Time reversion (pop science show)
  • · Replies 1 ·
Replies
1
Views
2K
High School Number Precision When Adding/Subtracting
  • · Replies 8 ·
Replies
8
Views
9K
Photo Contest - Magnetism (3/2-3/8)
  • · Replies 31 ·
2
Replies
31
Views
5K
High School Why is the height of a liquid not affected by the radius of a U-Shaped tube
  • · Replies 16 ·
Replies
16
Views
19K
CERN's Next Mega Collider - A live event from the RI
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Who Was Wolfgang Rindler and What Was His Impact on Cosmology?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Why did my bicycle speed increase on smooth pavement while coasting downhill?
  • · Replies 19 ·
Replies
19
Views
3K
Graduate David Kaplan lecture on Particles and the Nature of Nothing
  • · Replies 1 ·
Replies
1
Views
2K
Graduate Importance of uncertainty and probability in research papers
  • · Replies 3 ·
Replies
3
Views
2K
High School What a Shame we can't cite from popular sources
  • · Replies 8 ·
Replies
8
Views
2K
Name of a scientist who introduced many words into English?
  • · Replies 13 ·
Replies
13
Views
3K
High School Irradiance: difference between distance and the square of the distance?
  • · Replies 16 ·
Replies
16
Views
13K
Undergrad How to change the color of an LED?
  • · Replies 36 ·
2
Replies
36
Views
24K
News What do theoretical physicists do?
  • · Replies 8 ·
Replies
8
Views
3K
Undergrad Pixels Per Inch Calculation Paradox?
  • · Replies 14 ·
Replies
14
Views
17K
High School What does the symbol ± mean in scientific measurements?
  • · Replies 5 ·
Replies
5
Views
21K
Undergrad Can anything be measured with a single measurement?
  • · Replies 26 ·
Replies
26
Views
13K
Undergrad What is the opposite of light in the balance of nature?
  • · Replies 36 ·
2
Replies
36
Views
18K
Undergrad Papers with fewer authors are more disruptive
  • · Replies 2 ·
Replies
2
Views
2K
High School Mastering Equation Solving: m(dv/dt)=mg-bvn | Step-by-Step Guide
  • · Replies 4 ·
Replies
4
Views
12K
Undergrad Indirect Airflow for Safe Extraction of Hydrogen from Lead-Acid Battery Room
  • · Replies 4 ·
Replies
4
Views
13K
Do you think Tau Ceti e is inhabited?
  • · Replies 1 ·
Replies
1
Views
2K
What Type of Physics is Mentioned in This Italian TV Series?
  • · Replies 10 ·
Replies
10
Views
9K
High School Why does time only move forward and not backwards?
  • · Replies 33 ·
2
Replies
33
Views
20K
Undergrad Trying to better understand what viscosity really is
  • · Replies 9 ·
Replies
9
Views
17K
Undergrad What does Fermat's principle of least time mean for causality
  • · Replies 6 ·
Replies
6
Views
19K
High School Recreation of Famous Japanese Rogue Wave
  • · Replies 41 ·
2
Replies
41
Views
26K
High School Solid angle by placing one disk on a cylinder
  • · Replies 1 ·
Replies
1
Views
17K
High School Quartz vs. Glass -- why do they have different melting points?
  • · Replies 4 ·
Replies
4
Views
22K
Undergrad Tipler/Mosca significant figures
  • · Replies 3 ·
Replies
3
Views
15K
Graduate Naturalness: dimensionless ratios
  • · Replies 33 ·
2
Replies
33
Views
6K
High School Is this mark scheme correct, poorly worded, or wrong?
  • · Replies 18 ·
Replies
18
Views
18K
News RIP Roy Glauber - 2006 Nobel Laureate in Physics
  • · Replies 2 ·
Replies
2
Views
2K
Graduate Acceptable Atmosphere for CZ/Float-zone Refining
  • · Replies 1 ·
Replies
1
Views
13K
High School Are trigonometric ratios physical quantities?
  • · Replies 3 ·
Replies
3
Views
12K
India scientists dismiss Einstein theories
  • · Replies 7 ·
Replies
7
Views
2K