Uploaded September 2017 | Updated September 2026, 1 week ago
Here are a few high-speed videos of re-lighting an extinguished candle by its smoke. The frame rate for some of the shots might be different, ranging from 1250 FPS up to 2938.3 FPS.
===== NOTES =====
As I'm sure someone will complain about the music, there's always the option of turning off the sound and using your own music. I added music because it was sort of weird without any sound.
===== CAMERA & SETTINGS =====
Camera: Edgertronic SC1
Max Frame Rate: 2938.3 FPS
Horizontal: 480 pixels
Vertical: 272 pixels
ISO: 1600
Lens: Nikon 50mm 1.8D
===== SONG =====
E-Minor Prelude by Chopin
Here are a few high-speed videos of re-lighting an extinguished candle by its smoke. The frame rate for some of the shots might be different, ranging from 1250 FPS up to 2938.3 FPS.
===== NOTES =====
As I'm sure someone will complain about the music, there's always the option of turning off the sound and using your own music. I added music because it was sort of weird without any sound.
===== CAMERA & SETTINGS =====
Camera: Edgertronic SC1
Max Frame Rate: 2938.3 FPS
Horizontal: 480 pixels
Vertical: 272 pixels
ISO: 1600
Lens: Nikon 50mm 1.8D
===== SONG =====
E-Minor Prelude by Chopin
![Explained: NACA 4-Digit GUI Part 2/10 [MATLAB]](https://i.ytimg.com/vi/spHG_XEP5-c/mqdefault.jpg "Explained: NACA 4-Digit GUI Part 2/10 [MATLAB]
This is the second video in my 10-video series on coding a program in MATLAB to compute, display, and save a NACA 4-digit airfoil.
IN THIS VIDEO:
We clean up the GUI layout after opening the .fig file in GUIDE. We make the widths of the components the same, as well as align boxes and buttons horizontally and vertically.
IN THIS SERIES:
Part 1/10 : https://goo.gl/9UBgbo
Part 2/10 : https://goo.gl/jRRcYJ
Part 3/10 : https://www.youtube.com/watch?v=SbW1NDuvdJQ
Part 4/10 : https://goo.gl/HwHB39
Part 5/10 : https://goo.gl/AlDne8
Part 6/10 : https://goo.gl/7n1QP7
Part 7/10 : https://goo.gl/nTGleR
Part 8/10 : https://goo.gl/ez247P
Part 9/10 : https://goo.gl/8mXYcc
Part 10/10: https://goo.gl/ovBlbW")
![Explained: Lift Curve [Airplanes]](https://i.ytimg.com/vi/tF_Z1lz7HKw/mqdefault.jpg "Explained: Lift Curve [Airplanes]
Lift curves are available for various airfoils and provide data relating the lift coefficient of the airfoil to the angle of attack. The lift curves described in this video are for 2D (infinite wing) airfoils. Actual 3D wing lift curves are complicated by 3D effects such as spanwise flow and tip vortices. See the links below for actual NACA data for both a symmetric and a cambered airfoil.
Angle of Attack:
https://www.youtube.com/watch?v=Fm2Az-PgPUU
NACA 0012 (Symmetric):
- The lift curve to look at is the lower of the two sloped lines
- Notice that at zero AoA, the lift coefficient is zero
- The horizontal lines are moment coefficient plots, which you can ignore for now
http://mshades.free.fr/flapping/Cz0012.jpg
NACA 2412 (Cambered):
- Lift curve is the left of the two plots
- Notice that the zero lift AoA is negative (approx. -2 degrees)
http://www.tricity.wsu.edu/htmls/mme/me439/s2007/naca2412.jpg")
![Explained: Rain Gutters [Airplanes]](https://i.ytimg.com/vi/u4FNaPu9-hQ/mqdefault.jpg "Explained: Rain Gutters [Airplanes]
Rain gutters are little strips of material above doors that allow you to stay dry as you get on or off a plane. They also help keep the interior of the plane dry.
Horizontal rain gutter:
http://www.airliners.net/photo/Untitled-%28Trans-World/Lockheed-L-1011-385-1-TriStar/0197040/L/&sid=030cda10fed5df9cd077f6437194798e
Slanted rain gutter:
http://www.airliners.net/photo/Trans-World-Airlines/Lockheed-L-1011-385-1-15-TriStar/0689474/L/&sid=030cda10fed5df9cd077f6437194798e")
![Explained: Taylor-Maccoll Conical Flow Overview [Taylor-Maccoll]](https://i.ytimg.com/vi/v3EqbYGI_Hg/mqdefault.jpg "Explained: Taylor-Maccoll Conical Flow Overview [Taylor-Maccoll]
This is the first video in a series of videos about the supersonic flow over a cone at 0 degrees angle of attack. This is also known as Taylor-Maccoll conical flow, after the two guys that derived the equations and obtained solutions for this type of problem.
This video aims to introduce the general problem description and lay out the basic steps for the derivation/solution. More videos will follow as described in the video.")
