The location of any "hot spots" will vary with the location and size of the load (crucible) each time you place it in the microwave as the load affects the standing wave in the chamber. Food does not conduct heat well. Food is turned in microwaves so the food cooks evenly despite hot spots. Your...
I twice have bought older HP and Tek catalogs off of eBay as an aid in evaluating used test equipment options before purchasing. The last three companies I've worked for since 1998 made heavy used of equipment made before the date of your earliest 1983 catalog. Even now at work I use a...
You really need to size the transformer for the full 100%. Yes, the average current may be less, but the issue is the transformer core. To drive the 1-cycle sine the transformer core must not be pushed near saturation.
While I have no background in spacecraft, I do recall 44 years ago some basic from my "Statics and Dynamics" course. What is referred to as "dynamic acceleration" is probably just the next derivative of acceleration, or Jerk
Position
Velocity
Acceleration
Jerk
and a quick internet check shows...
davidbeach in thread thread815-515237 posted this link:
The Oregonian
According to the article, the 737-9 was new - just 2 months old. Brings up the questions. Had that door been properly latched/secured before the interior panel was placed over it? Or, is it some other kind of failure?
You never can tell where CS will take you. My son wanted both Comp Sci and a well known school, so he went to Ga Tech for his BS. Then GA for his Masters. He got exposed to a lot of research which led to doing research software tools for scientist at a research organization. Then to Cambridge UK...
Murph 9000 - you are thinking of United Airlines MD-10 Flight 232, aka Sioux City Iowa crash. The extra pilot was flying in a passenger seat and was called into the cockpit to help with the throttles.
This Alaska Airlines incident most resembles Federal Express Flight 705, April 7, 1994, that...
Transients.
Switch Mode Power has plenty of inductors as components and as parasitic inductance (wires and connections). V=L*di/dt Make dt small and V becomes big. And the whole point of power electronics is you are doing a lot of switching through inductors or motors. Plenty of voltage...
Seem to recall the V1 Buzz Bomb was made of thin steel and spot welded. Kept cost low and aluminum was a strategic material in short supply. A V1 cost less than 5% of what a V2 cost.
Not necessarily a good aircraft example as it only had to fly once for a few hundred miles.
You have to consider the entire system and not a single item. And then there is the reality. This article is only a week old.
Largest EV Charging Station In World Powered By Diesel-Powered Generators
When the Arrow program was cancelled, many of those engineers went south to the US. The space race had started and NASA was being organized. These engineers contributed to the Mercury, Gemini, and Saturn programs.
So, what are they using to connect steel hinges to aluminum body? Steel bolts?
Oldsmobile in the 80's changed from using a cast iron intake manifold on their V8s to an identically shaped aluminum one. But they kept the same die-cast thermostat housing and steel bolts. The bolts were indirectly...
You basically need a DC/DC buck converter. The 'YIPIN HEXHA' DC/DC converter of your amazon link may do the job. I don't recognize the name. The 96% efficiency they advertise is typical of a buck converter. They are using the term 'transformer' loosely to imply 'voltage converter' and not...
Let's not forget what 'Launched' the Apollo program. At the time of this speech much of the hardware was in the concept stage.
Kennedy Speech length 2:02
Man Moon Decade
Apollo was a major success.
The moon program was undertaken with the knowledge that there were risks. Apollo 1...
The final Apollo capsules were used for Skylab and then the Apollo–Soyuz mission. An airlock was used for both application to transfer out of the oxygen environment of the Apollo capsule.
Link to a 2020 Chinese paper: "High-Altitude Balloon-Based Sensor System Design and Implementation"
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7180688/
Google, and later a Alphabet division experimented with balloons for internet. Project Loon. The "fuel" for balloons is both helium and ballast. So these had a balloon inside the balloon. A pump moves gas in/out of the inner balloon where the helium is kept at a slightly higher density. That way...
