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Thanks! Great video. Just finding out this tool exists after listening to Sam Cooke's Song (Wonderful World) 😆

Hey I'm curious if a slide rule would work the same in a different base number? Can anyone help?

I'm 14, I'm bored at class and I wanna have some fun, thanks.

The way I understood the concept was “Newton’s first law of motion is the reason we don’t do ballet in the nude.”

I was wondering, would it be possible to get a small manufacturer (China?) to produce a batch of 1,000 of those nifty slide rules? The ones I find in Brazil are mostly in poor condition, and most eBay sellers of slide rules don’t ship to Brazil.

I remember a question on a Physics test back in 1976. If Lois Lane fell off the top of the World Trade Center and Superman was at the Empire State building, could he catch Lois before she hit the ground. We were given the height of both buildings and the distance between them. How fast would Superman have to travel to save her? The answer was that it was possible for him to get there, but the impact would kill her 😂.

Anyone watching this video would already know their Trig. I think ur second video explains the first over cooked it. But I’m assume as I watch more this is more of a maths class tutorial and not sextant usage

When walking on ice, is it safer (a) to slide ones feet, or (b) make each step as vertical as possible? Judging by your video, (b) is definitely safer. I have had this argument with someone; (but have not collected experimental data).

I think we call it dynamic friction in the UK.

Like your pen!

Could you make a video about conservation of momentum? Thank you. Also I would like to see a join button.

Very nice "straight forward" forward presentation, if you get my drift bob? But, I noticed you neglected to mention the concept of *Mass* in motion or the principle of Inertia. _(Although you may have done, as i didn't actually watch the whole thing! 😅)_ That is essentially Newton's first law. This equation is simply *F=ma* in a different form, so maybe you should have started at the very beginning with a description of *Inertia.* As I've found that is where most people slip up when discussing projectile motion or the orbital motion of planets and tides. Good luck.

Can I ask a simple question I went on line and downloaded the Simulated Picket N3. How do I “make it work”. Can’t get the curser or slide to move.

a very interestimg video. great!

Trivia - the log-log scale was conceived, contrived, created, designed, developed, devised, formulated, innovated, invented, originated by Dr. Peter Roget.

May I remind a trick I already mentioned here, allowing to calculate the norm (or length) of a vector, which is the square root of the sum of the squares of its coordinates. Here in the 2D space, that would be the square root of x^2 + y^2. - Align the value of y^2 on the mobile B scale under the fixed 10 of scale A - Read the value m on fixed A scale, in front of x^2 on mobile B scale. - Mentally compute 10 + m, and align the cursor on fixed A scale at the result position. - On that alignment, you can read the sum x^2+y^2 on scale B and its square root on scale C.

Thank you for another great video with a practical application for slide rules! You’re right, vector calculations are much easier and faster with a slide rule than a digital calculator! I have one question: What type of fountain pen do you use in your videos?

Well bob its me again, 1400-1642 math time a time of , simple people,small number,then,refined now,1950s era math great,ours greatest of all man's math now common without hate,here,keep it here only library and library way, book kept,many copies only, now...John.

Thanks Bob, try this logic, .25 a b/c4=? 4parts multiple what? Of .25, makes 1, 1/4.so 1/16= 4*4=16. Base change.

I use (x-90),(x-180) with cos-1 c/b , a/b=angles sometimes use. +90, brg=+180 too. John.

Try double x,x angle,then double y,y angle, sin-1(C/B),cos-1(A/B),cos-1(C/B). Y ,cos-1(A/B),cos-1(C/B),sin-1(C/B). Double angles. John.

.25 a b/c1=1/4 base of one try other bases,4,8,16,32,64 have fun.,

Thanks for reminding me of the good times with my slide rule in engineering school. Use of the slide rule engaged you in the problem solution more so than use of computers, something we've lost along the way. And, it's nice to hear from a real science guy instead of that fraud with a similar name.

roger, Roger!

@Bob --- Love this channel !!!! Been following along with my trusty K&E 4081- 3 Decitrig. Keep the videos coming.

Currently studying calculus and this has shed some significant light on what the numbers mean. Math is a cool tool! Thank you very much

Have you done your slide rule presentation to the math club students?

Just got my Pickett N4-ES in the mail yesterday. Gave it a good (mild) cleaning and lubricated it with dry teflon . SMOOTH! I haven't had a slide rule in my hands for 50 years. This will be fun learning again. When I was in college, I'm afraid I only learned the minimum in order to make it through my chemistry and physics courses. Looking forward to some self-learning of pre-calculus and trig. Keep up the great work!

i just want you to know that we're all counting on you - for a good video. (surely you will, with a title like that.)

Thanks for another awesome slide rule video.

Thanks! Looking forward to the next practical problem 😁

yeeaaaa thanks for this videos!! Time to grab my sliderule!!!

Thanks for this amazing stuff. Never was very good at math in my young years, but since I started to figure out and use slide rules, math became much more ‘logical’ and interesting!

That's just 1 example... All the stars move, called stellar parallax, tells us our orbit diameter, star distance, etc

Mine is the Pickett Dual-base Log-Log yellow From the Apollo era. marcus

It was been a long time since I took calculus. I do remember that integral calculus was harder than differential calculus.

Excellent. Concise and to the point.

Thanks for this video. I was just reviewing this on Brilliant. But no fountain pen?

Notice the mistake I made at the end. Could you have caught it on the ‘smell test’?

Thanks. I'm currently learning quadratic equations and projectile motion problems in physics. I was wondering how I could use my slide rule for those.

Really neat trick for getting square roots with CI and D. I've been practicing it on my Decilon. Thanks for sharing!

Thank you for these videos! I am a slide rule collector and enthusiast, but I haven’t used a rule professionally or “in anger”😂. Your videos, and Professor Herning’s, provide a lot of insight to help us get past “2 x 2 = 4” operations!

Awesome indeed.

Much of Physics requires only 2sf. At school I learned how to perform mental arithmetic, including sines and cosines &c, to 2sf rapidly enough to beat slide rule users. Beyond 2sf I'd use log tables - I still have my 1960s school copy. I bought my first calculator when I was about 50!

I never lose I'm back And now I know a Lil bit of physics stuff Distance= Oh wrong one Speed=Distance/Time Oh wait can I do this? Speed*Time=Distance Woah

Ok Im 2 minutes in and Im already cooked I quit Brain boom

Woah an old person teaching math stuff My friend said I have to click on them if I see em on RUclips Well It's Watching time But I'm probably gonna understand nothing cuz it looks like big people stuff