Stuff you didn't know and probably don't care about

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Charmonium

Diamond Member
May 15, 2015
9,597
2,959
136
Waiting for Elon to get off Twitter and get back to doing cool stuff period.
I think it's just a phase. Peeps with Asperger's can have a lot of trouble with social interaction and I think he's just fascinated with that aspect of things at the moment.
 

lxskllr

No Lifer
Nov 30, 2004
57,689
7,919
126
The map makes zero sense to me. I downloaded the English version, rotated it 180°, and it's worthless. I'd have to redo it correctly so I could at least find my way back after the trip. No wonder they stayed in that hot hellhole. Couldn't find their way out.
 

KMFJD

Lifer
Aug 11, 2005
29,713
44,010
136


One of the things i like to do now and then is to just load up google earth and have a look at some random places around the globe, while having a look at the mountain areas between Nigeria and Cameroon i saw this place called the Ayos Centre

 

lxskllr

No Lifer
Nov 30, 2004
57,689
7,919
126
Reactions: KMFJD

FelixDeCat

Lifer
Aug 4, 2000
29,312
2,101
126


very interesting, it reflects quite a bit of energy
I know, I think I will start a paint company. I will paint cars, homes and even clothes with this stuff.

Or better yet, I will just wait for manufacturers to do it.
 

Tsinni Dave

Senior member
Mar 1, 2022
559
1,378
106


very interesting, it reflects quite a bit of energy
Between this and the blackest black paint awhile ago I wonder if it could be used with the Stirling engine design in much sunnier places than the rainforest I'm in.
Basically powered by temperature differential. 200 year old tech. NASA has had one running continuously for over 14 years maintenance free using radioactive decay,, but I always had a soft spot for the design after seeing one that still worked as a water pump.
 
Reactions: Ajay and KMFJD

Thump553

Lifer
Jun 2, 2000
12,726
2,501
126
Interesting motor concept, mainly for range extenders on a ev


~There's no cylinder head in this motor. Also no crankshaft, no camshaft, and no valves. That's why it's no surprise that this engine tips the scales at just 85 pounds. Somehow, it still produces 120 horsepower with just half a liter of displacement, thanks to what the company calls a single-stroke combustion cycle.
Here's a youtube video about it. I came away with the conclusive it is largely hype, at least at this stage.

 
Reactions: KMFJD

KMFJD

Lifer
Aug 11, 2005
29,713
44,010
136
Here's a youtube video about it. I came away with the conclusive it is largely hype, at least at this stage.

Trying to drum up investors? The NASA Stirling engine that Tsinni Dave mentioned is very interesting as well....reminds me of an article i read about a year or so ago where someone had invented/started using a new 'substance' for 'steam' , instead of using water they where using something much more efficient but for the life of me i cannot find it.
 

KMFJD

Lifer
Aug 11, 2005
29,713
44,010
136


~The explosion was heard in Samoa, roughly 840 km (520 mi) away before the sound travelled to more distant countries.Residents in Fiji, more than 700 km (430 mi) away, described the sounds of thunder.
~The eruption was heard more than 2,000 km (1,200 mi) away in New Zealand, where the sound arrived two hours later.
~Booms were heard as far away as Yukon in Canada, 9,700 km (6,000 mi) away
~The underwater explosion also sent 146 million tons of water from the South Pacific Ocean into the stratosphere.The amount of water vapor ejected was 10 per cent of the stratosphere's typical stock.

that was a big boom
 
Reactions: lxskllr

spacejamz

Lifer
Mar 31, 2003
10,847
1,492
126
The passenger steamer SS Warrimoo was quietly knifing its way through the waters of the mid-Pacific on its way from Vancouver to Australia. The navigator had just finished working out a star fix and brought Captain John DS. Phillips, the result. The Warrimoo's position was LAT 0º 31' N and LONG 179 30' W. The date was 31 December 1899. "Know what this means?" First Mate Payton broke in, "We're only a few miles from the intersection of the Equator and the International Date Line". Captain Phillips was prankish enough to take full advantage of the opportunity for achieving the navigational freak of a lifetime.
He called his navigators to the bridge to check & double check the ship's position. He changed course slightly so as to bear directly on his mark. Then he adjusted the engine speed.
The calm weather & clear night worked in his favor. At mid-night the SS Warrimoo lay on the Equator at exactly the point where it crossed the International Date Line! The consequences of this bizarre position were many:
The forward part (bow) of the ship was in the Southern Hemisphere & in the middle of summer.
The rear (stern) was in the Northern Hemisphere & in the middle of winter.
The date in the aft part of the ship was 31 December 1899.
In the bow (forward) part it was 1 January 1900.
This ship was therefore not only in:
Two different days,
Two different months,
Two different years,
Two different seasons
But in two different centuries - all at the same time!



I did see this on wikpedia though: However, the navigational technology of the time was not accurate enough to have fixed her position so precisely. Whether Warrimoo ever achieved the feat claimed cannot be verified.
 

JEDI

Lifer
Sep 25, 2001
30,160
3,302
126
The passenger steamer SS Warrimoo was quietly knifing its way through the waters of the mid-Pacific on its way from Vancouver to Australia. The navigator had just finished working out a star fix and brought Captain John DS. Phillips, the result. The Warrimoo's position was LAT 0º 31' N and LONG 179 30' W. The date was 31 December 1899. "Know what this means?" First Mate Payton broke in, "We're only a few miles from the intersection of the Equator and the International Date Line". Captain Phillips was prankish enough to take full advantage of the opportunity for achieving the navigational freak of a lifetime.
He called his navigators to the bridge to check & double check the ship's position. He changed course slightly so as to bear directly on his mark. Then he adjusted the engine speed.
The calm weather & clear night worked in his favor. At mid-night the SS Warrimoo lay on the Equator at exactly the point where it crossed the International Date Line! The consequences of this bizarre position were many:
The forward part (bow) of the ship was in the Southern Hemisphere & in the middle of summer.
The rear (stern) was in the Northern Hemisphere & in the middle of winter.
The date in the aft part of the ship was 31 December 1899.
In the bow (forward) part it was 1 January 1900.
This ship was therefore not only in:
Two different days,
Two different months,
Two different years,
Two different seasons
But in two different centuries - all at the same time!
View attachment 83681


I did see this on wikpedia though: However, the navigational technology of the time was not accurate enough to have fixed her position so precisely. Whether Warrimoo ever achieved the feat claimed cannot be verified.
surprised a ship didnt try to recreate that effect on dec 31,1999.
ie: a billionaire's yacht?
 
Reactions: igor_kavinski

KMFJD

Lifer
Aug 11, 2005
29,713
44,010
136
Here's an interesting article on the Apollo missions Guidance Computer which uses something called core rope memory



~The Apollo Guidance Computer (AGC) had very little memory by modern standards: 2048 words of RAM in erasable core memory and 36,864 words of ROMin core rope memory.In the 1960s, most computers (including the AGC) used magnetic core memory for RAM storage, but core ropes were unusual and operated differently.Erasable core memory and core rope both used magnetic cores, small magnetizable rings. But while erasable core memory used one core for each bit, core rope stored an incredible 192 bits per core, achieving much higher density.The trick was to put many wires through each core (as shown above), hardwiring the data: a 1 bit was stored by threading a wire through a core, while the wire bypassed the core for a 0 bit. Thus, once a core rope was carefully manufactured, using a half-mile of wire, data was permanently stored in the core rope.

 

KMFJD

Lifer
Aug 11, 2005
29,713
44,010
136
This is an interesting/horrific miscommunication


British brigadier reported the position to his American superior in the United Nations joint command, he did so with classic and -as it turned out - lethal British understatement.
"Things are a bit sticky, sir," Brig Tom Brodie of the Gloucestershire Regiment told General Robert H Soule, intending to convey that they were in extreme difficulty.

For four days, mostly without sleep, they held off 30,000 Chinese troops trying to surge across the river, killing 10,000 of them with Bren gun fire.
 
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