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Join the discussion of general engineering topics. The design, building, and use of engines, machines, and structures. Use the forum for any engineering topics not applicable to the specific categories.

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Low-Cost Object Detection System Using ESP32-CAM – Approach, Challenges
1K threads
Electronics Low-Cost Object Detection System Using ESP32-CAM – Approach, Challenges
Practical Fluid Mechanics: inversions & mixing
  • CodeScience
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7
Engineer's Delight: Obscure Machines & Power Generation Devices
  • anorlunda
  • · Replies 7 ·
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7
Strength of Schedule 40 steel pipe
  • Awningguru
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1
AC vs DC servo motors in large scale cable robot design
  • cpcoe
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4
Structural query on removing a masonry wall and lintels
  • Feebs
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1
News Is this the second largest excavation after the Panama Canal?
  • jtbell
  • · Replies 15 ·
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15
Research about magnetic stick-on signs for cars
  • shinobila
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2
Need equipment and ideas for an experiment
  • Natus Homonymus
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8
How to choose a pump for a simple irrigation system
  • sam_smk
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4
What is the basis for beach erosion control methods?
  • dahoa
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2
Do you have to be good at hand-drawing for civil engineering?
  • John6969
  • · Replies 8 ·
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8
How Do Technology and Engineering Differ?
  • Demystifier
  • · Replies 24 ·
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24
Calculate Tidal Force on Underwater Artwork Sculpture in Philippines
  • James8626
  • · Replies 12 ·
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12
Vpr statics derivation of beam hinging
  • dahoa
  • · Replies 3 ·
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3
How Do You Calculate Beam Deflection for an I Beam on Lorry Trailers?
  • Colin Thompson
  • · Replies 3 ·
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3
A few questions on car mechanisms and driving habits
  • Wrichik Basu
  • · Replies 5 ·
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5
Another amazing rescue (helicopter rescue on Mt Hood)
  • berkeman
  • · Replies 7 ·
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7
Understanding Beam Calculations for Engineers: Solving for Second Moment of Area
  • jonnybmac
  • · Replies 9 ·
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9
Engineering Physics certificate undergraduate in Europe
  • messlesskess
  • · Replies 2 ·
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2
Science Addresses Recent increase in MLB Home Runs
  • BillTre
  • · Replies 9 ·
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9
Interview About Writing in Engineering
  • Brandon Lathrop
  • · Replies 1 ·
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1
Turning on and off the air conditioner consumes more energy?
  • Psinter
  • · Replies 8 ·
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8
Help Determining the Minimum Thickness of a Vacuum Chamber Lid
  • chrisritson
  • · Replies 4 ·
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4
Calculating Power for a car, and relating it to the motor curve
  • zaraf
  • · Replies 3 ·
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3
What are optic fibres/cables in simple words?
  • physea
  • · Replies 15 ·
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15
Implausible multiple failures in my gas central heating system
  • Jonathan Scott
  • · Replies 9 ·
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9
Force-Deformation Equations Application
  • depressivemoron86
  • · Replies 1 ·
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1
Which strain tensor is used by Abaqus?
  • hari123
  • · Replies 2 ·
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2
Wind Turbine Hydraulic to Electrical Conversion
  • deckart
  • · Replies 72 ·
3
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Is a diamagnetic levitation engine possible?
  • RealJebKerman
  • · Replies 11 ·
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11
Novel Technology to clean the ocean of plastics
  • jedishrfu
  • · Replies 3 ·
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3
Statically Determinate: Insight into this equation please?
  • mishima
  • · Replies 4 ·
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4
New regulations on maritime emissions
  • Dedale
  • · Replies 3 ·
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3
Modeling the Impact of a Small Nuclear Bomb in Washington DC
  • BillTre
  • · Replies 1 ·
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1
How would you solve the water abundance XPrize?
  • PraAnan
  • · Replies 14 ·
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14
Water resistance in a flashlight
  • Stephenk53
  • · Replies 3 ·
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3
Help identify this label (electrical/nuclear engineering equipment)
  • One Time
  • · Replies 4 ·
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4
Water cooling for trout ponds in the South African summer
  • Quinton Leigh
  • · Replies 17 ·
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17
Question about lifting water through a water pipe.
  • ConnorJohn
  • · Replies 4 ·
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4
Getting to this 4th order O.D.E.
  • hushish
  • · Replies 2 ·
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2
New Product Idea and Book Giveaway -- Who Wants it? (N95 straw)
  • berkeman
  • · Replies 44 ·
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Location of a load on a platform
  • JosephNY
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3
How old is too old for equipment and other safety issues
  • Stephenk53
  • · Replies 11 ·
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11
Can You Construct a Functional Building Using Car Tires?
  • John1397
  • · Replies 5 ·
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5
Looking for CFD simulation help on this Aero experiment
  • berkeman
  • · Replies 2 ·
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2
Optimum shape for a pressurized structure in a pressure gradient
  • DaveC426913
  • · Replies 13 ·
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13
Need Ideas for Building a Strong Cantilever Bridge/Crane with Limited Materials?
  • lekh2003
  • · Replies 6 ·
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6
Technologies for creating a pointer
  • Avatrin
  • · Replies 5 ·
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5
How to generate 100 watts of heat from a car battery
  • John1397
  • · Replies 26 ·
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26
Weakly & strongly coupled structures in piezoelectric energy harvesting
  • nabs16
  • · Replies 2 ·
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2
What is Artificial Intelligence?
  • JTC
  • · Replies 10 ·
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10
Help 1064 nm emitted from different sources of devices
  • live-in-upwey
  • · Replies 3 ·
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3
Resources to broaden knowledge of basic engineering
  • ISamson
  • · Replies 4 ·
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4
German energy prices go negative
  • CWatters
  • · Replies 5 ·
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5
Negative pressure in house after winterizing
  • Greg Bernhardt
  • · Replies 86 ·
3
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86
What is the difference between M-code and P-code in GPS?
  • senmeis
  • · Replies 1 ·
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1
Optimizing Hook Angles for Hanging Sound Absorbing Panels from a Ceiling
  • PSuran
  • · Replies 17 ·
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17
Second moment of area of a hollow triangle
  • Becky6
  • · Replies 1 ·
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1
How to train myself to be more careful?
  • stephenkohnle53
  • · Replies 27 ·
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27
Why are we only considering the first eigenfrequencies?
  • snejburg
  • · Replies 1 ·
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1
Solving a Problem with LPHW Radiator
  • jami8337
  • · Replies 5 ·
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5
  • Poll Poll
Interested in Joining PF's EE DIY Project Contests?
  • ISamson
  • · Replies 5 ·
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5
Acoustic Electricity Generation - Modern Applications
  • WiseGuy01
  • · Replies 5 ·
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5
Infrared thermometer working principle
  • misterwicked
  • · Replies 17 ·
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17
Meteorology: Turbulence/Dimensionless Analysis
  • AppeltjeBosheuvel
  • · Replies 6 ·
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6
Which is Cheaper: 30 Separate Houses or a 30-Story Building?
  • Frenemy90210
  • · Replies 16 ·
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16
Is LNG a Better Alternative to Diesel for Generators?
  • Home Improvement
  • · Replies 26 ·
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26
Can a Model Accurately Simulate Pressure Variations in Tillage Tools?
  • serbring
  • · Replies 16 ·
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16
What Does No Axial Thrust on Hinge B Imply in Statics?
  • fayan77
  • · Replies 2 ·
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2
KISS Principle Marine Propulsion
  • anorlunda
  • · Replies 4 ·
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4
How Can You Build an Affordable Solar Panel?
  • Damon Roach
  • · Replies 7 ·
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7
What are the Best Methods for Precise Vertical Movement Measurement?
  • Sam21
  • · Replies 2 ·
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2
Project "Verne's Island" (idea, like biosphere....but not)
  • dkotschessaa
  • · Replies 3 ·
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3
Can staff be bent and how does it compare to modern building materials?
  • Stephen Tashi
  • · Replies 1 ·
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1
Can Roads Double as Shelters During Evacuations?
  • anorlunda
  • · Replies 52 ·
2
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52
Why Focus on Road Segments for Traffic Forecasting Models?
  • denihilo13
  • · Replies 14 ·
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14
Recycled Energy versus Renewable Energy
  • TMT
  • · Replies 4 ·
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4
Millionaire's Sinking Skyscraper Condos Almost Worthless :(
  • kyphysics
  • · Replies 2 ·
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2
Would a reverse wing sweep be better for speeds above Mach 2
  • Joseph Wood
  • · Replies 10 ·
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10
Some questions about Fourier series
  • baby_1
  • · Replies 3 ·
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3
Can Mineral Oil Solve the Heat Problem in High Performance Computing?
  • Delta Force
  • · Replies 1 ·
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1
Guidance on Sensor Choices for High Speed Impact Sensing
  • ConnorM
  • · Replies 3 ·
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3
Charity engineering project water projections
  • Buggsy GC
  • · Replies 11 ·
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11
Assessing the Feasibility of JaycubL's Device Concept: A Preliminary Analysis
  • John2432
  • · Replies 2 ·
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2
"ANSYS Workbench" Contact tool results plotting vs length?
  • Ahmed Mirghani
  • · Replies 1 ·
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1
Affordable hurricane-resistant housing, can we do it?
  • Noisy Rhysling
  • · Replies 19 ·
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19
4WD Arduino Controlled car - Problem with motor shield
  • SmplFcts
  • · Replies 1 ·
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1
Underwater breathing apparatus?
  • RICKYtan
  • · Replies 7 ·
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7
Automated tennis ball launcher for my dog
  • Doc
  • · Replies 14 ·
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14
Scale 1:25 or 1:75 why scale ruler first reading is 0.5m and....
  • zillah
  • · Replies 5 ·
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5
How can table saw safety be improved with the use of SawStop technology?
  • jackwhirl
  • · Replies 10 ·
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10
Something to hold a heavy lid open? Lid stay?
  • rwooduk
  • · Replies 7 ·
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7
News Thorium /neodymium questions and purchase
  • tim longbotham
  • · Replies 2 ·
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2
What is the ideal thickness for a concrete slab for a chemical storage tank?
  • NewEngineer
  • · Replies 2 ·
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2
Can Solar Replace Oil and Meet US Energy Demands in 50 Years?
  • Physics_Kid
  • · Replies 14 ·
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14
Why Set the Inner Boundary Condition to -1 in Radial Flow Equations?
  • Aows
  • · Replies 12 ·
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12
How can I create a unique projection of my company logo on light shades?
  • thestudent101
  • · Replies 2 ·
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2
Explain to me the flaw in this perpetual motion scheme
  • ramzerimar
  • · Replies 2 ·
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2
Rienforced Concrete Column Cost Optimization with Genetic Algorithm
  • Amurrioe
  • · Replies 2 ·
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2
Is Critiquing Green Ideas Considered Taboo in the Scientific Community?
  • CWatters
  • · Replies 48 ·
2
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48