A Sine Bar Walks Into a... wait


Comments • 1 936

  • Pieter Botes
    Pieter Botes  15 hours back

    I've been a toolmaker for 45 years and also a metrologist for 26 years. A sine bar and a set of gauge blocks are just awesome tools to have in your tool shop. It's probably the most accurate way to set something at an angle or to determine an angle.

    • Phil Studge
      Phil Studge  1 days back

      By the hat of Ned Ryerson... I got that. Why couldn't any high school math teacher I met 50ish years ago clear this up for me. Thank you - and you are entertaining!

      • Lyndon ROBERTS
        Lyndon ROBERTS  2 days back


        • 74KU
          74KU  3 days back

          4:46 was I the only one who noticed the "tot" column.. there was a missed opportunity for that to be filled with "Subscribe" on each line.

          • Wesley Mays
            Wesley Mays  4 days back

            Trigo- S H O P M A T H

            • macbirt56
              macbirt56  6 days back

              At 0:31, you tried to slip it by me but you spelled error, "erorr" That would be an error. Soryy, continnue pleez.🤣🤣🤣

              • John Wilbanks
                John Wilbanks  1 weeks back

                Wow... my head hurts.

                But great job.

                • Virgil Splabodavic
                  Virgil Splabodavic  2 weeks back

                  Can anyone talk about anything anymore without getting shady? PLEASE!

                  • Nestor Knoxs
                    Nestor Knoxs  2 weeks back

                    Why don't you have over 1M subscribers!!!??

                    • J. Todd Lee
                      J. Todd Lee  2 weeks back

                      The humor density is particularly high

                      • David Parsons
                        David Parsons  2 weeks back

                        I made it to the 10:00 minute mark. Then my head was splitting. Thanks Tony.

                        • Gary Mucher
                          Gary Mucher  2 weeks back

                          My only question is...WHAT????

                          • All Terrain Australia
                            All Terrain Australia  2 weeks back

                            My CNC is great at maths

                            • tom thompson
                              tom thompson  3 weeks back

                              years of maths sorted out in mins ,, well done

                              • audiocrush
                                audiocrush  3 weeks back

                                Around 14:30 are all the arguments as to why almost everyone on this planet uses the metric system ;)

                                • Tjita1
                                  Tjita1  3 weeks back

                                  "For the three of you who are still watching..." *gets half a million views*

                                  • gousmc1983
                                    gousmc1983  3 weeks back

                                    Shop Meth, not even once

                                    • Aidan Shaffer
                                      Aidan Shaffer  3 weeks back

                                      How did you get a ToT and arcTot key on your caculator?

                                      • Juan Garza
                                        Juan Garza  3 weeks back


                                        • Ugandan Knuckles
                                          Ugandan Knuckles  3 weeks back

                                          I was always bad at triggernometry

                                          • bistromathics6
                                            bistromathics6  3 weeks back

                                            ...and that's exactly what this is- a tangent.

                                            • Steve Arehart
                                              Steve Arehart  3 weeks back

                                              As a mechanical draftsman for 40 years, I enjoy trigonometry!

                                              • Lyndon ROBERTS
                                                Lyndon ROBERTS  3 weeks back

                                                oh, and the flash light is kind of a point source, you need parallel beams, source a long way away, else parallax error, what you kind of call Trig Cos error etc. Sin (angle) = Opposite / Hypotenuse, Cos, Tan etc, my duplication.

                                                • Lyndon ROBERTS
                                                  Lyndon ROBERTS  3 weeks back

                                                  TOT - another good video, though maybe mention SOHCAHTOA, and what the working defn of Sin, Cos, Tan, of an angle in a constructed right angle triangle is Opposite div Hypotenuse for Sin, much btr with pen, paper, in a video, and the special 3 4 5 triangle matching the size of your bar and multiples of for ease etc abbreviated explanation, maybe an addendum video, thanks.

                                                  • Justin M
                                                    Justin M  3 weeks back

                                                    Makes me want to learn shop math

                                                    • BiC MC
                                                      BiC MC  4 weeks back

                                                      Holy fuck, I have, for some reason, never properly understood trig. I am in high school, and this is about the best explanation for it and has helped me really understand it

                                                      • Dozer1642
                                                        Dozer1642  4 weeks back


                                                        • Phone Email
                                                          Phone Email  4 weeks back

                                                          You crack me up. My wife is like what are you laughing at?! And then looks over my shoulder and says.... "I don't get it..."

                                                          • jasoncy31
                                                            jasoncy31  1 months back

                                                            Holy crap, I understand trigonometry. Thanks TOT!

                                                            • kingofdogs49
                                                              kingofdogs49  1 months back

                                                              who else is one of the 3?

                                                              • J M
                                                                J M  1 months back

                                                                You are a hell of a teacher. I hope your kids take full advantage of having access to your knowledge.

                                                                • Lewis Wright
                                                                  Lewis Wright  1 months back

                                                                  The subscribulator 😂 classic tot

                                                                  • Ben S
                                                                    Ben S  1 months back

                                                                    SOH CAH TOA

                                                                    • Harry Meijer
                                                                      Harry Meijer  1 months back

                                                                      Thanks a lot for this (and all the other vids)

                                                                      • Michael D.
                                                                        Michael D.  1 months back

                                                                        This video has helped me a ton! Thanks

                                                                        • Todd Cooper
                                                                          Todd Cooper  1 months back

                                                                          This is insine!

                                                                          • Laundry Sauce 2
                                                                            Laundry Sauce 2  1 months back

                                                                            All of a sudden trig makes complete sense to me now

                                                                            • Len Kaufer
                                                                              Len Kaufer  1 months back

                                                                              Thanks, Tony.
                                                                              Ya learned me somethin' that I fell asleep listening to 50 years ago. The lathe setup enlightened me, too.
                                                                              Keep the videos coming.

                                                                              • Santibag
                                                                                Santibag  1 months back

                                                                                The people that hate trigonometry probably had bad math teachers or some other problems. With a little bit of Khan Academy, most of the people can learn trigonometry well.

                                                                                • oddjobbobb
                                                                                  oddjobbobb  2 months back

                                                                                  Would that someday I make things that will require the purchase of the sine bar, plate, table, gage set and angle set. But I have a more or less serious question. Why do you suppose lace the different items on a scotch brite pad?

                                                                                  • Exclusivelibary
                                                                                    Exclusivelibary  2 months back

                                                                                    i really wish you were my trig teacher back in high school. trig never really clicked in my head until now

                                                                                    • deck monkey
                                                                                      deck monkey  2 months back

                                                                                      That's why the hillbilly in another machining video said he was taught to set his top slide to 30 degrees and always leave it there. Usually you can separate the wheat from the chaff with a bucket of cold water instead of math.

                                                                                      • Look Around
                                                                                        Look Around  2 months back

                                                                                        When a scientific word is unknown...best bet it has Greek roots. Like Trigonometry

                                                                                        • Schwalm
                                                                                          Schwalm  2 months back

                                                                                          Im pretty sure that the Sine bars are 2.5, 5, and 10 because a right angle with sides 3" and 4" long, the hypotenuse is 5". It probably makes things easier when they can test things with whole numbers.

                                                                                          • mike tabback
                                                                                            mike tabback  2 months back

                                                                                            You lost me after "angles stuff" but I still enjoyed the video.

                                                                                            • Oscar Lewis
                                                                                              Oscar Lewis  2 months back


                                                                                              Feel traumatised yet?

                                                                                              • Username
                                                                                                Username  2 months back

                                                                                                Is that Tony Hawk Pro Skater menu music? Now that _is_ an old Tony...

                                                                                                • Delivery McGee
                                                                                                  Delivery McGee  2 months back

                                                                                                  I failed trig twice in college, this made all that stuff make sense.