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Undergrad Newton's cooling to be applied to heating

  • vin300
  • · Replies 8 ·
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8

Undergrad Why does it take more energy to heat nitrogen?

  • SPIAction
  • · Replies 22 ·
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22

Graduate Thermodynamics: Open system: outlet but no inlet

  • Paul245
  • · Replies 4 ·
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4

Undergrad Temp Limits: Speed of Light, Absolute Zero & Kinetic Energy

  • pzona
  • · Replies 8 ·
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8

High School Microwave Radiation: Is Standing Nearby Harmful?

  • ScienceNerd36
  • · Replies 17 ·
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17

Undergrad Maintaining a temperature of 70 degrees in a metal powder

  • trini
  • · Replies 5 ·
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5

Undergrad First Law of Thermodynamics conversion

  • putongren
  • · Replies 10 ·
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10

Undergrad Why can't metal mesh be used to make planes stealthy?

  • likephysics
  • · Replies 8 ·
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8

Undergrad Cooling down by switching the heating on?

  • Count Iblis
  • · Replies 3 ·
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3

Graduate How do I make a saturated vapor vessel?

  • Hapee
  • · Replies 1 ·
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1

Undergrad Newton's Third Law with Skimboarding?

  • gibxam
  • · Replies 12 ·
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12

Undergrad What Bubble Shapes Most Effectively Insulate Against Heat?

  • Loren Booda
  • · Replies 9 ·
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9

Undergrad Hit or Miss: Maintaining Fridge Temperature w/ Food or Air

  • redsrtturbo
  • · Replies 3 ·
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3

Undergrad Blackbody Radiation Explained: A Layman's Guide

  • dolimitless
  • · Replies 1 ·
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1

Graduate Calculating Radiation Propagation with Cs-137

  • tuoni
  • · Replies 6 ·
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6

Undergrad Why liquids don't stay hot/cold indefinitely in a thermos

  • Mentallic
  • · Replies 6 ·
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6

Graduate Pressure, temperature, and volume relation in liquids

  • physical1
  • · Replies 3 ·
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3

Undergrad Does temperature change with external forces?

  • Yuqing
  • · Replies 9 ·
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9

Graduate Which of these radiation sources gives a higher dose rate?

  • LennoxLewis
  • · Replies 19 ·
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19

Graduate Relative Entropy: Coffee Hot after Acceleration?

  • Fumarium
  • · Replies 5 ·
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5

Graduate Is the Otto Cycle Reversible with Ideal Gas Assumptions?

  • Harmony
  • · Replies 3 ·
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3

Undergrad Newton's second law cosine and sine

  • DmytriE
  • · Replies 1 ·
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1

High School Why Does Wind Make a Cold Day Feel Even Colder?

  • quasar987
  • · Replies 6 ·
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6

Graduate Can Entropy Really Be Transferred Across System Boundaries?

  • lifeson22
  • · Replies 5 ·
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5

Graduate Understanding Entropy and Equilibrium: Debunking the Confusion

  • jisun.hong
  • · Replies 3 ·
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3

Undergrad Is this a reliable way to determine the alcohol %?

  • LennoxLewis
  • · Replies 3 ·
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3

Undergrad Why Does Paper Stick to Hot Bowls?

  • mkbh_10
  • · Replies 1 ·
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1

Undergrad Thermal equilibrium + heavier mass

  • ariana0923
  • · Replies 1 ·
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1

Undergrad What is the efficiency of reversible engines according to Carnot's Theorem?

  • botee
  • · Replies 15 ·
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15

Undergrad Emission of Infrared radiation

  • BBRadiation
  • · Replies 2 ·
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2

Undergrad Thermal equilibrium and aluminum

  • ariana0923
  • · Replies 1 ·
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1

High School What Causes Fire to Produce Heat and Light?

  • vorcil
  • · Replies 1 ·
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1

Undergrad Thermal expansion of solid cylinder with blind hole

  • spotfriends
  • · Replies 1 ·
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1

Graduate Can Sound and Light Properties Quantitatively Determine System Entropy?

  • piareround
  • · Replies 2 ·
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2

Graduate Is the second's law of thermodynamics fundamental?

  • fluidistic
  • · Replies 18 ·
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18

Undergrad Absolute Zero and Absolute Accuracy

  • The Anomaly
  • · Replies 1 ·
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1

Graduate Entropy and sliding block with friction

  • darkrystal
  • · Replies 3 ·
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3

Graduate Heat and Photons: Understanding the Effects on Isolated Atoms"

  • treddie
  • · Replies 11 ·
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11

Undergrad What do Rayleigh and Nusselt numbers tell us about heat transfer?

  • billiards
  • · Replies 3 ·
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3

Graduate Analyzing Gas Tank Filling Rates: Solving a Differential Equation

  • nick5
  • · Replies 5 ·
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5

Undergrad What is Einstein Temperature? - Calculate & Understand

  • freesnow
  • · Replies 1 ·
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1

Graduate Problem on heat transfer on multilayer

  • rr00053
  • · Replies 2 ·
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2

Undergrad Max Efficiency of a Carnot Engine vs Other Engines

  • cos(e)
  • · Replies 2 ·
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2

Undergrad How is ionization an endothermic reaction?

  • dolimitless
  • · Replies 2 ·
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2

Undergrad What is the true nature of rest according to Newton's first law?

  • Dweirdo
  • · Replies 30 ·
2
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30

Undergrad The rate of cooling of a material in air, or with no barrier between materials

  • andythecc
  • · Replies 1 ·
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1

Undergrad What happens to heat and radiation in a perfectly insulated box?

  • treddie
  • · Replies 5 ·
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5

Undergrad Have people artificially created blackbodies yet?

  • thomasxc
  • · Replies 2 ·
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2

Graduate How the first two laws of thermodynamics apply to order

  • watcherkds
  • · Replies 5 ·
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5

Graduate How to Calculate dE/dx for a Mixture of Gases?

  • jbb88
  • · Replies 2 ·
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2

Graduate An upper bound in temperature?

  • fluidistic
  • · Replies 2 ·
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2

High School Does an Open Refrigerator Heat Up a Room?

  • Archosaur
  • · Replies 14 ·
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14

Undergrad Uranium/Plutonium hot to the touch?

  • jmatejka
  • · Replies 15 ·
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15

High School The d in Newton's second law of motion?

  • ScienceNerd36
  • · Replies 19 ·
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19

Undergrad Optimizing Solar Water Heater Efficiency for Pool Heating

  • tomot
  • · Replies 2 ·
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2

Graduate Understanding Entropy: Definition, Relationship to S=Q/T, and Impact of dS=dQ/T

  • BoyangQin
  • · Replies 3 ·
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3

Graduate Entropy increase in gravitational collapse.

  • martin_blckrs
  • · Replies 13 ·
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13

Undergrad Interesting lesson on Wheatstone bridges

  • orthovector
  • · Replies 2 ·
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2

Graduate Process such as isobaric, isochoric, quasistatic, adiabatic

  • cos(e)
  • · Replies 3 ·
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3

Graduate Pipe diameter expansion due to temperature increase

  • doop4
  • · Replies 3 ·
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3

Undergrad The rate of temperature change

  • veritassium
  • · Replies 4 ·
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4

Undergrad What is the efficiency of a gun?

  • magnetar
  • · Replies 15 ·
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15

High School Energy extraction help requested

  • zydubion1
  • · Replies 4 ·
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4

Graduate Heating of solid - interatomic potential

  • trelek2
  • · Replies 3 ·
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3

Graduate UK Insolation: Heat Gain Through Windows & NSE&W Calcs

  • lurksalot
  • · Replies 1 ·
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1

Undergrad What Does Joules per Kelvin Imply About Entropy?

  • TimNguyen
  • · Replies 4 ·
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4

Graduate Is Entropy a State Function for Isolated Systems?

  • Andrew_
  • · Replies 32 ·
2
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32

Graduate Frame dependence of temperature

  • Josyulasharma
  • · Replies 3 ·
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3

Graduate What Happens When Steam and Water Reach Thermal Equilibrium?

  • Crocodile
  • · Replies 5 ·
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5

High School Newton's Third Law: Is it True and Why Does it Work?

  • Caesar_Rahil
  • · Replies 9 ·
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9

Undergrad Can Gases Lower Their Temperature Through Radiation Heat Transfer?

  • fluidistic
  • · Replies 5 ·
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5

Undergrad Would it be possible to create a sterling engine out of liquid nitrogen and air?

  • qazwsxedc
  • · Replies 5 ·
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5

Graduate Could This Experiment Disprove the Second Law of Thermodynamics?

  • ocunue
  • · Replies 4 ·
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4

Graduate Temperature change after flow through an oriface

  • gbq57
  • · Replies 2 ·
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2

High School Compressor vs Condenser - what's the difference?

  • wavingerwin
  • · Replies 1 ·
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1

Graduate Gibbs Energy: Understanding A=G+hM

  • KFC
  • · Replies 1 ·
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1

Undergrad Understanding Energy Transfer and Heating in Materials Exposed to EM Radiation

  • mirshafie
  • · Replies 8 ·
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8

Undergrad U-Value: Calculating Energy Loss for W/M2/K

  • lurksalot
  • · Replies 4 ·
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4

Undergrad Can Thermal Cameras Help Reduce Epidemic Spread More Effectively Than Vaccines?

  • exponent137
  • · Replies 25 ·
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25

Undergrad How to tell if two system has same temperature?

  • KFC
  • · Replies 2 ·
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2

Undergrad Can Heat Transfer Occur Unevenly in a System with Constant Temperature?

  • fluidistic
  • · Replies 4 ·
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4

Undergrad What is negative heat capacity ?

  • magnetar
  • · Replies 5 ·
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5

Undergrad How to collect the energy from the heat of the environment

  • qazwsxedc
  • · Replies 1 ·
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1

Graduate Small bandgap IR detectors need to work in crogenic temperature

  • chenhon5
  • · Replies 2 ·
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2

High School Temperature of something is a measure of the average kinetic energy

  • madness
  • · Replies 27 ·
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27

Undergrad Enthelpy with regards to heat exchangers and air

  • gman89
  • · Replies 2 ·
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2

Undergrad Radiators and Fan Arrangement Questions to improve performance

  • kinghong1970
  • · Replies 1 ·
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1

Graduate Achieving Sonic Flow with Shop Compressors and Vortex Tubes

  • jslade
  • · Replies 1 ·
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1

Undergrad Energy Transfer: Instant Transmission?

  • jamesb-uk
  • · Replies 8 ·
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8

Undergrad Why about 1 kJ/kg/K for so many solids?

  • lalbatros
  • · Replies 3 ·
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3

Graduate Entropy in big bang vs big crunch

  • rjbeery
  • · Replies 3 ·
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3

Graduate Circular argument in the first law of thermodynamics ?

  • navigator
  • · Replies 4 ·
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4

Graduate Bernoulli : temperature lower in a restriction?

  • Roger44
  • · Replies 6 ·
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6

High School Relationship between pressure, density, temperature, and state of matter

  • wavingerwin
  • · Replies 2 ·
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2

High School Why does the dewpoint go down with increasing temperatures?

  • Count Iblis
  • · Replies 7 ·
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7

Graduate Do soundwaves heat up the air through which they travel?

  • Conor_McF
  • · Replies 5 ·
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5

Graduate From shannon's entropy to thermodynamics

  • enricfemi
  • · Replies 2 ·
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2

Graduate Understanding 2 Adiabatic Processes and the 2nd Law of Thermodynamics

  • orthovector
  • · Replies 4 ·
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4

Graduate Is Heat Release Necessary for Steady State Equilibrium in Heat Flow?

  • orthovector
  • · Replies 13 ·
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13

Undergrad Why Lake Tahoe Doesn't Fully Freeze

  • PhysicsinCalifornia
  • · Replies 8 ·
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8