@stephanie_coombes: I first heard about this while I was in Japan, watching some variety show I had on in the background at the hotel. I only half understood what they were saying at the time (my Japanese is very, very basic), but I remember thinking, “Surely I’ve misunderstood… a mechanical GPS…?” It took a bit of Google-ing, but it turns out I hadn’t. Back in the early 1980s, Honda built a navigation system that use satellites. Before setting off, you placed a clear plastic map into the dashboard and marked your starting point. As you drove, a gyroscope measured your turns while sensors on the wheels tracked the distance travelled. The car constantly combined that information to estimate where you were, moving a cursor across the map as you drove. It’s more complicated and genius than that. I recommend you read the whole story on Honda’s website. It took a lot of testing, and they had to make their own maps for this project, because there was nothing available which was accurate enough. It wasn’t perfect (obviously) but for the time it was an incredible piece of engineering. This was the first commercially available navigation system for cars, I believe. I love that Honda found a completely unique way of getting from A to B. GPS systems of course reign supreme now. But I almost prefer this solution. #honda #carhistory #hondaaccord #japaneseengineering
Stephanie Coombes
Region: AU
Sunday 05 July 2026 02:38:37 GMT
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Ape’s delight :
Stuff like this is how I justify my TikTok addiction
2026-07-06 04:34:06
4030
Agent86 :
A long way from cassette tape navigation 10 years prior that (71’ VW Beatle UK market) but very cool they were trying to work out a way to show maps in cars.
2026-07-05 07:25:33
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Wyreweb :
this needs a come back as some kinda offline backup gps
2026-07-07 13:37:51
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Ski. OTM Options. Overland :
And here I was printing off map quest directions in 2004
2026-07-06 21:51:58
624
I use arch btw :
Fun fact, navy ships still have a backup dead reckoning system in the event that GPS is jammed or spoofed that does something similar to this. It’s accurate for days at a time.
2026-07-06 11:14:43
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gaybrat_ :
I LOVE early tech where they used all the less efficient ways because they were still figuring out what was efficient it’s so charming to me
2026-07-05 22:03:55
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smol-frog 🇨🇦🏳️🌈 :
I want gps without the spying and loss of privacy.
2026-07-07 03:16:52
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Dro-Man-Dan :
It’s sad we can’t have anything good unless someone can profit off of it instead of just making live better all round for everybody
2026-07-05 19:10:34
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ADHDdetector :
no one in a Honda accord ever had a problem with excess wheels pin 🥲
2026-07-05 02:50:17
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Candy Willis-ruan :
We took so many cross country trips with just paper maps. And pure luck. , when we crossed state lines we’d stop and get the next state map at a gas station. , it’s crazy. Now I can’t go down the street without Apple Maps. 😂
2026-07-07 01:49:11
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Shea Ohmsford :
Inertial guidance. Airplanes still use a way more sophisticated version using laser ring gyroscopes as a backup for GPS 🌈
2026-07-06 15:51:42
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Mr. Grogg :
I love this stuff. I have a seventy year old grandfather clock that can have its hands turned backwards to set, and shows the moon phase, and allows its hands to be set to impossible times like the hour hand exactly on a number with the minute hand on the six, and within two hours it completely corrects itself. I can't even comprehend how that can be possible without computer chips and just gears. Mad respect for the physical aspects of real engineering.
2026-07-06 05:09:10
10
Christophe :
I have just learned recently that Russian Soyouz « navigation system » for calculating the landing spot (apologies for the lack of technical description) was ENTIRELY mechanical ⚙️a giant watch complication with gears 😳
2026-07-07 16:20:52
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ZacheryMB :
There is like a huge rabbit hole to go down about the guy who started the company that adds the first down line to television broadcasts of football games. He came up with a similar navigation system that stored maps on digital cassette tapes.
2026-07-05 15:00:07
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Fish :
Almost seems more trouble than it’s worth, still sick though!
2026-07-05 12:50:59
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Naveed Beg :
All the digital stuff we have now was pretty much sorted mechanically back in the day. It's just amazing engineering
2026-07-07 16:50:54
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Krystal LynneR :
This really is super clever! I love learning about things like this.
2026-07-07 15:37:13
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Raheeeeem :
If it’s now more afford to implement, it would be a great fallback when network fails
2026-07-07 15:43:08
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Rubens :
I was working on a NASA rover powered by a mechanical clock and dug into this when I worked on the PNT (position, navigation and timing) concepts neat stuff it is pretty accurate
2026-07-06 05:54:01
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maxmutton :
The Honda knows where it is at all times. It knows this because it knows where it isn't. By subtracting where it is from where it isn't, or where it isn't from where it is (whichever is greater), it obtains a difference, or deviation. The guidance sub-system uses deviations to generate corrective commands.
2026-07-05 09:25:24
85
🔻 Amr 🔻 :
As an automotive software engineer I am thinking, the first problem came to my mind is zooming the map while canceling the gerontology errors from the device. This is an interesting problem 🤍
2026-07-07 02:41:35
6
Cypress :
They also had ‘autopilot’ system that worked off of radio waves back then. Never made it to market
2026-07-06 01:35:58
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Collin Johnson :
Excuse me, Bob is not my uncle
2026-07-06 04:09:43
5
G :
GPS satellites were actually around then. First one was launched in 1978,. and it was open to the public in 1983. Mainly for pilots. In 2000 it became more precise for the public.
2026-07-05 07:45:25
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RCA Antenna :
This is how Pipboy's work in my mind now, I don't care if it's not canon
2026-07-06 14:40:26
15
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