HN user
This antenna array is used for EME. For those not familiar with that acronym, it means using the moon as a radio reflector to send signals back to earth: https://en.wikipedia.org/wiki/Earth%E2%80%93Moon%E2%80%93Ear...
Fun fact: He builds these with / for the actor Tyler Perry, whom has a hanger and RC airstrip at his home.
As an alternative to Lora, check out https://github.com/projecthorus/wenet
I think you could also infer storm tracks based on pilot deviations they often make following their on-board radar.
For the latest in multi-stage high pressure, high altitude water powered rockets, this group is paving the way: https://youtu.be/xm-tGJxepUw?si=uGA--H1kPgBCVREd
I wonder if you develop an ML model that uses brightness and color reduction cues in the video in order to estimate depth in lieu of a dive computer. I suspect cameras auto-exposure or underwater modes may nullify this.
At more than $100 million each (equivalent to $750 million today), they departed Earth, then fell in pieces into the ocean.
Could you imagine the unit cost today, if we kept building Saturn V in an iteratively improving process? Even as an expendable rocket, the efficiencies from mass production and weight savings from miniaturizing avionics would have produced a very capable, affordable machine.
An individual F1 engine outperforms an individual Raptor 2/3.
Check out: https://ecalc.ch/wingdesigner.htm
The team at CPSdrone (3D printed submersibles) made a very similar project to hunt for and identify a sunken plane: https://youtu.be/QnBfJzApJMg?si=vFGqMrqZOgFXMAoV
They also used an ArduRover powered catamaran and the same brand Sonar, but made a smaller deployable ROV.
Tim Dodd (Everyday Astronaut) has an overview and interview with Stoke from about a year ago: https://youtu.be/EY8nbSwjtEY?si=-kNtNUFpgiisgsUh
Yearly at FliteFest, an RC airplane festival put on by FliteTest, we hold a dogfight/combat with hundreds of airplanes. The only difference is no munitions (excluding pesky LiPo fires)
Has anyone confirmed if LEV1 and LEV2 can continue to operate and communicate to earth independently from SLIM, if the SLIM batteries fail?
I was looking at video on training a custom voice with Piper, following a tutorial at https://www.youtube.com/watch?v=b_we_jma220, and noticed how the datasets required metadata of the text for the source audio files. This training method by Collabora seems to automate that process and only requires an audio file for training.
I stumbled across this surprisingly delightful source of games and educational tools while trying to explain analog clocks to my son. I'm impressed by the simplicity of the design and lack of login or advertising.
On the tech side, looks like the creator uses Javascript to create HTML5 canvas elements with: https://createjs.com/easeljs
I use https://github.com/jketterl/openwebrx with RTL-SDR sticks
Daniel, from RCTESTFLIGHT on YouTube, has a series of videos where he experiments with solar airplanes, which wad really interesting to watch from the standpoint of a RC and electronics hobbyist:
https://youtube.com/playlist?list=PLXvxJNOIXBsM83XxVG7tDUmql...
“I cannot conceive of any vital disaster happening to this vessel,” said Captain Edward Smith, commander of the Titanic.
Very similar experience here. I found I’d also prefer scrolling with my ring finger than thumb. I still need to make the DPI adjustment in firmware
Here’s a relevant article about a recent report from the FAA regarding Beyond Visual Line of Sight operations, one of the key regulatory hurdles to drone delivery: https://www.prnewswire.com/news-releases/faa-publishes-uas-b...
The actual document (24.6 MB PDF is available from here: https://www.faa.gov/regulations_policies/rulemaking/committe...
One very in-depth book I have is: The Linux Programming Interface: A Linux and UNIX System Programming Handbook
I’ve switched from my Gmail domain to CloudFlare + iCloud. Initially, I set MX records and the txt record to iCloud for verification, and then added the CloudFlare MX records at a higher priority. So far, the setup seems to be working well.