Filmed from a fallback/forward observer location approximately 2.5 miles from the launch pad.

The tone at the start of the video is an alert broadcast over the safety net indicating the vehicle is still on the pad. The female heard over the loudspeaker is one of my coworkers, while the two male voices you may hear are another two of my coworkers who are performing forward observer functions. The cheers are from some of the Firefly team.

"Ignition", "X good engines", "Liftoff", and "Program program" are calls made by the forward observer (Back Az or Program), telemetry observer, forward observer (Back Az or Program), and forward observer (Program). Other calls can be heard being made and acknowledged throughout the launch.

Taken from a fallback location approximately 2 miles from the launch pad. Quality isn't the best due to me using a cellphone to capture the footage.

The periodic voice you may be able to hear is an automated mission time announcement. "X seconds/minutes....mark"

Surf Beach is approximately 3.5 miles from the launch pad.

SpaceX Transporter 9 Launch & Landing video taken on Vandenberg SFB approximately 1.6 miles from the launch & landing pads. This is basically as close as you can be (regardless of whether you're a civilian, military member, SpaceX employee, etc) for a launch of a rocket like this.

Yes, the camera optics need to be taken in for a cleaning.

Basic principles of Switched Mode Power Supply (SMPS) buck converters.

If you enjoyed this video, you can find me on Odysee as well as streaming similar content and answering questions on Twitch.

BitChute: https://www.bitchute.com/channel/PFcKCnETC0xn/
Odysee: https://odysee.com/@ElectronWrangler:8
Twitch: https://www.twitch.tv/electronwranglertv
YouTube: https://www.youtube.com/channel/UCxz3T1tlpzTWrqSLx2rd1bQ

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Investigating and correcting minor variations in brightness of an LCD's backlight. The backlight brightness is controlled via PWM, but there is a slight flicker unrelated to the PWM control signal.

Continuing a custom USB hub design from scratch.

Initial specifications:
6 ports
Self-powered
Per-port current controls
Per-port current reporting

Twitch: https://www.twitch.tv/electronwranglertv

Continuing a custom USB hub design from scratch.

Initial specifications:
6 ports
Self-powered
Per-port current controls
Per-port current reporting

Twitch: https://www.twitch.tv/electronwranglertv

Pulse-width modulation is a technique that allows a microcontroller to control the speed of motors, brightness of LEDs, or average voltage without needing a DAC.
If you don't have a microcontroller with on-board PWM hardware, or have run out of PWM channels, how can PWM be simulated using software?

An object is accelerated at a constant 70m/s/s from the ground through a height of 2m. What is the object's maximum height, time to maximum height, velocity upon hitting the ground, and total time in the air?

An object experiences an acceleration of -4m/s/s for a period of 2.5s, after which the object has a velocity of 0m/s. What is the object's initial velocity and how far does it travel during the acceleration?

An object 2m above the ground has an initial vertical velocity of 15m/s. How long does it take to reach maximum height, and what is the maximum height? What is its velocity when it hits the ground? What is its total time in the air?

A process in a factory requires molten metal be dropped from a height and remain in freefall long enough to harden before impact. If the time needed to harden is 4s, how high must the molten metal be dropped from? What is the metal's velocity when it hits the factory floor?

A hockey puck is moving over the ice at 8m/s when it hits a rough patch of ice 5m in width. The puck continues on smooth ice at 6m/s. What was the puck's acceleration through the patch of rough ice? How long was it moving through the rough ice patch?

If an aircraft's velocity is 300m/s when the pilot increases the throttles to 100%, what is its acceleration if the final velocity is 400m/s and the distance covered is 4km? How long did it take for the aircraft's velocity to increase 100m/s?

Suppose the plates of a capacitor are separated by 1.7cm and are oppositely charged. A proton is released on the surface of the positively charged plate and collides with the negatively charged plate 1.57us later. What is the strength of the electric field, and what is the proton's velocity when it hits the negatively charged plate?

How does an atom get its color? It all comes down to an atom's electronic configuration, that is, the number of electrons the atom contains.
Basic atomic structure: https://www.bitchute.com/video/k92ogcJArxPe/
Movement between electron orbits: https://www.bitchute.com/video/Ip7d4FSoaF0E/

How can we use the light emitted by an object to figure out the composition of said object? We can do so by splitting light emitted by the object into its constituent components, then by comparing the results to "fingerprints" of chemical elements. This is called spectroscopy.

Can electrons move from one orbit to another? If so, is energy consumed or emitted during the move? Let's quickly examine electrostatic charge and Coulomb's law to find out.

What are the parts of an atom and where do they reside within an atom? What is their mass? Do they have electric charges? Let's take a brief look at the Bohr model to find out the answers to these questions.

Suppose there are two points in space where electric potential has been measured. Point A, at -1m, measures -1000V. Point B, at 1m, measures 1000V. What is the electric field, in V/m?

Suppose we have an electric field of 3000V/m. What is the potential between a point at 10cm and a point at 30cm?

Suppose there exists two plates with a space between them of 1.8cm and an electric field of 51000N/C. If a proton is released on the surface of the positive plate, what is its velocity when it hits the negatively charged plate?

Suppose we have a proton and some point 0.053nm from the proton. What is the electric potential at said point? Now suppose there is an electron at this point. What is the potential energy of this electron?

What would a #SpaceForce look like? The answer is probably a lot like what we already have.