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> But, in order to make sure she could handle the 3-hour flight, my wife and I made sure to hype up the airplane journey. So much so, that my toddler was shocked when we had to get into a cab for the airport — she expected to walk straight from our house onto a plane. This is absolutely adorable, hilarious and understandable at the same time.
>the crew spots you with a cute plane-obsessed toddler, they invite you in to check out the cockpit. Matching NASA orange jumpsuits are the passport into every cockpit. The crew gets way more excited than the kids. Also makes them super easy to find in the airport.
Interesting how the OpenSky API shows all of the private jets at Farnborough, whereas the flightradar24 UI hides them.
Related "An app can be a home cooked meal" on cloning the defunct social network app Tapstack for just his family's usage https://www.robinsloan.com/notes/home-cooked-app/
Going viral also not bad though.
Advice for a wholesome activity with your daughter: Bring her to the closest road/parking lot/park at the inbound end of your closest international airport runway (Typically this changes based on wind direction). Park and watch the planes come in and land. She can use her "radar" to see which planes are coming in (we used flightradar24). My kids were FLOORED how close the planes get to the ground on approach - especi…
I was hoping he was actually building a radar, but this is not one. Still nice though.
My friend in NSO group is working on hacking the iPhone to pick up transponder signals, watch this space
I love the design but go one step further - forget the API and get an SDR that is tuned to ADB frequencies at 1090 Mhz and gather the data yourself. Then she'll have a true radar. Edit: fair point on what a radar is, today I re-remembered :)
Nice app and writeup - but she won't have a radar - she'll have an app that displays the positions of airplanes. A true radar needs to transmit and receive. The SDR is still just listening to the telemetry from the plane, which they transmit all the time for this ADS mode.
I love the design but go one step further - forget the API and get an SDR that is tuned to ADB frequencies at 1090 Mhz and gather the data yourself. Then she'll have a true radar. Edit: fair point on what a radar is, today I re-remembered :)
Earlier quoted context omitted.
I suggest adjusting your gradient so they don't fully fade out until just before the sweep hits them, or maybe even only down to 10%, so they only get wiped by the bar. It'll make it much easier to watch a plane if it doesn't keep disappearing entirely.
On the other hand, if you want maximum realism, everything should fade continuously from when it is drawn. The underlying technology being imitated here is a slowly decaying phosphor.
Just wanted to say what a wonderfully uplifting comment thread here in HN all launched by a heartwarming article. Such a pleasure to read of the kids delight, people's travels and fun as kids and with their own children. + a billion!!
It's quite nice the level of positivity, versus some of my other deep technical write-ups which might have a small inaccuracy
Toys are harder to mess up!