About Engineer4Free
Engineer4Free is a tutorial site where anyone can learn university level engineering for free. Engineer4Free has made hundreds of YouTube tutorials and organized them into several courses ranging from Calculus to Project Management to Structural Analysis. Whether you're cramming at 3AM, reviewing for the FE exam, or just life-long-learning, you've come to the right place.
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What People Are Saying
IT'S SO OBVIOUS NOW. This must be what an epiphany feels like.
Thank you so much! I struggled with titrations for such a long time, and I finally get it! I'm definitely going to ace this on my final!
Great video, I got the same kind of question in my examination and I nailed it.
Thanks a lot! Explained the ideas behind it well, rather than just throwing numbers and formulas at me like my lecturers...
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Thank You Patreon Supporters
Thank you to ALL of my Patreon supporters. Your contributions enable me to keep focusing on making new tutorials that all engineering students around the word can benefit from. Big shout out to the following individuals:
Aaron Barraso, Abasifreke David, Abeeralthani Nasser, Adnan Bonsu, Adriaan Badenhorst, Ahmad Shah, AJ Durnil, Al Alshahrani, Alejandro Gallardo, Alex Brindle, Am Tjabadi, Amine Sidi-Boumedine, Anabel Jacques, Andrew Edman, Angel Rodriguez, Angel Rojas, Anton Kröss, Anvar Kunanbayev, Arian Davis, August Engelke, Augustine Uyah, Austin, Avery Hodell, Barbara Charalambidi, Bas, Benjamin Seow, Bhav Chatha, Bishesh Malla, Bonner Feller, Brendan Beall, Brendan Lamothe, Brian Geary, Bomber24, Cameron Wayne Huff, Casey Ellyson, Charlie, Charles Harres, Chibuzo Chimeka, Chris Patel, Claire Arnold, Clint C Ross, Clinton, Colin Goegle, Cyndy Y Zhu, Daniel Ribero, Darryn Medhurst, David G Allsebrook, David Keith, DD, Denzel, Devon, Dresser MTB, Edgar Berges, Eileen Hammer, Elizabeth Shepard, Elona Ganchenko, Emily Lane, Emily Stamos, Emrah, Ethan Coorey, Ethan Prescott, Farhan Majid, G, Garrett Romanzin, Gavin Lingefelt, George Hutson, Giovanni Arevalo, Greg Peterson, Haisem Said, Hannah, Harry Jackson, Hayden Claire McCombs, Hedi, Hijiri, Ilgar Aziz, Isabel Bunn_25, Isabellaa, Isabelll, Isha Huft, Izet Zekiroski, Jaco, James I Countryman, Jared Gumula, Jarom Foster, Jasmine, Joel Harris, Jonah Simminger, Kaif Rizvi, Keara Kerr, Keltan Kemp, Kevin Parra, Liam, Jack Boland, Jacob Shuman, Jason, Jay Venca, Jaxx Brown, Jeaux, Jeremy Bozzo, Jerry, Jesner Pereira, Jess Wood, Joe Sefchik, Joey Moriarity, John Burkus, John Moors, John S, Johnna Verry, Jonathon Rama, Jones Llabres Inso, Jordan Vantatenhove, Jorge Guevara, Joseph Marks, Joshua Bernabe, Julian Osario, Jullian Phan, Kiowa Campbell, Kuliwa Syakwasia, Kyle, Kyley Fijalkowski, Laura Cardenas, Laura Nicholson, Leanna Carr, Lee Rodrigue, Lemuel, Liam Lindsay, Liz Kelly, LLJMMOOSE, Logan S, Mackenzie Henderson, Malcom, Mals Boehle, Marcus Vela, Mark Zagumennyy, Maria Lessis, Matara Jonathan, Mateusz Garnys, Matt, Max Ruane, Melody Dan, Max Eiszele, Miro Tapio Repo, Michael Jin, Mitch Hewitt, Mouad Sheredi, Nabin Bhattarai, Nareg Shirajian, Nathalia Peregrino, Nawath Aljaberi, Ness L, Niamh Donohue, Nick Sprague, Nick Wallace-Beach, Nikolaj Munk, Nikoloz Babajanashvili, Noah, Nyteceya Lewis, Ola Ayeko, Ookami, Orren, Parker Spurlin, Pascal Chitho, Patrick Long, Paul Fieldwick, Peter, Rachel Thomas, Radu, Enache, Raines09k, Rashad, Raymond Cronin, Renne Eustaquio, Rigo Marulanda, Riley Giwoo Jin, Roger Bjarke Andersen, Roman Jackson, Ryan Stashko, 少卿 倪, Saisanjith Kakkireni, Sampson Tandoh, Sarah Mbayi, Saran, Sarah Norberg, Sauce, Scott S., Scott Walker, Sebastian Kenley, Shahram Omary, Shalamar Clarke, Shaun Riach, Shirin Ibesh, Simon Roper, Skar, Stefan Henry, Stephen Pimentel, Steven, Steven Arreola, Steven W., Sulabh Gupta, Sya, Syed Amir Haikal, Taiwo Babalola, Tawny Denzer, Terrell Jackson, TheKingsReaper, Thomas Andrew Francis, Thomas Schumacher, Timothy Rogers, Trinity Ijoma, Truman Spring, Varsha, Vassilis Bakalas, Vaughn Patrick, Walker Young, Wes Dubroc, Will Hornung, Will Schreiber, Xander Zhang, Yusuke Morita, Zac Davidson, Zack Martin, Zane King-Williamson, Zoba Don
Aaron Barraso, Abasifreke David, Abeeralthani Nasser, Adnan Bonsu, Adriaan Badenhorst, Ahmad Shah, AJ Durnil, Al Alshahrani, Alejandro Gallardo, Alex Brindle, Am Tjabadi, Amine Sidi-Boumedine, Anabel Jacques, Andrew Edman, Angel Rodriguez, Angel Rojas, Anton Kröss, Anvar Kunanbayev, Arian Davis, August Engelke, Augustine Uyah, Austin, Avery Hodell, Barbara Charalambidi, Bas, Benjamin Seow, Bhav Chatha, Bishesh Malla, Bonner Feller, Brendan Beall, Brendan Lamothe, Brian Geary, Bomber24, Cameron Wayne Huff, Casey Ellyson, Charlie, Charles Harres, Chibuzo Chimeka, Chris Patel, Claire Arnold, Clint C Ross, Clinton, Colin Goegle, Cyndy Y Zhu, Daniel Ribero, Darryn Medhurst, David G Allsebrook, David Keith, DD, Denzel, Devon, Dresser MTB, Edgar Berges, Eileen Hammer, Elizabeth Shepard, Elona Ganchenko, Emily Lane, Emily Stamos, Emrah, Ethan Coorey, Ethan Prescott, Farhan Majid, G, Garrett Romanzin, Gavin Lingefelt, George Hutson, Giovanni Arevalo, Greg Peterson, Haisem Said, Hannah, Harry Jackson, Hayden Claire McCombs, Hedi, Hijiri, Ilgar Aziz, Isabel Bunn_25, Isabellaa, Isabelll, Isha Huft, Izet Zekiroski, Jaco, James I Countryman, Jared Gumula, Jarom Foster, Jasmine, Joel Harris, Jonah Simminger, Kaif Rizvi, Keara Kerr, Keltan Kemp, Kevin Parra, Liam, Jack Boland, Jacob Shuman, Jason, Jay Venca, Jaxx Brown, Jeaux, Jeremy Bozzo, Jerry, Jesner Pereira, Jess Wood, Joe Sefchik, Joey Moriarity, John Burkus, John Moors, John S, Johnna Verry, Jonathon Rama, Jones Llabres Inso, Jordan Vantatenhove, Jorge Guevara, Joseph Marks, Joshua Bernabe, Julian Osario, Jullian Phan, Kiowa Campbell, Kuliwa Syakwasia, Kyle, Kyley Fijalkowski, Laura Cardenas, Laura Nicholson, Leanna Carr, Lee Rodrigue, Lemuel, Liam Lindsay, Liz Kelly, LLJMMOOSE, Logan S, Mackenzie Henderson, Malcom, Mals Boehle, Marcus Vela, Mark Zagumennyy, Maria Lessis, Matara Jonathan, Mateusz Garnys, Matt, Max Ruane, Melody Dan, Max Eiszele, Miro Tapio Repo, Michael Jin, Mitch Hewitt, Mouad Sheredi, Nabin Bhattarai, Nareg Shirajian, Nathalia Peregrino, Nawath Aljaberi, Ness L, Niamh Donohue, Nick Sprague, Nick Wallace-Beach, Nikolaj Munk, Nikoloz Babajanashvili, Noah, Nyteceya Lewis, Ola Ayeko, Ookami, Orren, Parker Spurlin, Pascal Chitho, Patrick Long, Paul Fieldwick, Peter, Rachel Thomas, Radu, Enache, Raines09k, Rashad, Raymond Cronin, Renne Eustaquio, Rigo Marulanda, Riley Giwoo Jin, Roger Bjarke Andersen, Roman Jackson, Ryan Stashko, 少卿 倪, Saisanjith Kakkireni, Sampson Tandoh, Sarah Mbayi, Saran, Sarah Norberg, Sauce, Scott S., Scott Walker, Sebastian Kenley, Shahram Omary, Shalamar Clarke, Shaun Riach, Shirin Ibesh, Simon Roper, Skar, Stefan Henry, Stephen Pimentel, Steven, Steven Arreola, Steven W., Sulabh Gupta, Sya, Syed Amir Haikal, Taiwo Babalola, Tawny Denzer, Terrell Jackson, TheKingsReaper, Thomas Andrew Francis, Thomas Schumacher, Timothy Rogers, Trinity Ijoma, Truman Spring, Varsha, Vassilis Bakalas, Vaughn Patrick, Walker Young, Wes Dubroc, Will Hornung, Will Schreiber, Xander Zhang, Yusuke Morita, Zac Davidson, Zack Martin, Zane King-Williamson, Zoba Don