Random Photos

Point Conception · Jul 12, 2023

We took the coast route to seafood market

A woman with shoulder-length light brown hair, seen from behind, in a white camisole and white shorts and brown boots, standing on a sandy shore beside shallow water. Wooden stilt houses stand over the water in the background.

A woman in a white crop top and white shorts and reddish-brown boots holds up a phone to take a selfie beside a dark metal pole on a red-brown waterside promenade, with a white railing, calm water and a pavilion with a blue roof behind her.

An elderly shirtless man wearing a white hat, a face mask, dark shorts and sandals stands on an orange waterfront deck beside a wooden railing, with calm water and boats behind him.

A woman in a white sundress, yellow face mask and brown boots holds a bamboo stick and a green plastic bag beside an older man in a straw hat, blue face mask and colorful patterned shirt, in a covered market aisle with produce stalls.

DennisN · Jul 12, 2023

Borg said:

My wife and I are doing an Alaskan cruise out of Seattle soon.

I hope you bring a camera/smartphone!
Alaska can be darn beautiful, from what I understand.
And we want photos posted here later...

DennisN · Jul 12, 2023

Happy July!

Here's a gorgeous flower I've seen a couple of times, and this time I shot it.
I just love that the different petals are in different, distinct colors.
Google Pictures says it's some sort of Dahlia.

Close-up of a dahlia bloom with dark maroon outer petals and white-tipped inner petals around a yellow centre, with pink flowers and green leaves blurred behind it.

(shot with Canon nFD 50mm f/1.4, at least I think so )

pinball1970 · Jul 16, 2023

A little bit of green in Hyde.

A dirt path curves through a dense woodland, lined with tall trees and green undergrowth on both sides under a dim, overcast sky.

pinball1970 · Jul 16, 2023

I took about eight pictures and none of them really captured what I wanted. This was the closest.

Photo of a suburban road at dawn or dusk under a sky of scattered cloud lit gold and pink, with street lamps, a bus shelter and red-brick houses on the right.

pinball1970 · Jul 16, 2023

Not a great picture, not centred correctly, probably because I climbed up the statute opposite to get a better scope. I'm not great with heights.
I spent many an hour here in the 80s, central library, Manchester.

Photo of the Central Library in Manchester, a circular stone building with a tall portico of Corinthian columns beneath a domed roof, with pedestrians in a paved square in front.

phinds · Jul 16, 2023

pinball1970 said:

central library

Where?

pinball1970 · Jul 16, 2023

phinds said:

Where?

Manchester.

jtbell · Jul 16, 2023

Here's a restaurant where the food is really hot:

Restored red antique fire engine with brass railing displayed inside a brick-walled restaurant; sign on the truck reads FIREHOUSE RESTAURANT.

Tom.G · Jul 17, 2023

DennisN said:

I just love that the different petals are in different, distinct colors.
Google Pictures says it's some sort of Dahlia.

That Dahlia photo got my wife's attention (she is into colored-pencil artwork and wants to try sketching it).

After a bit of on-line research she came up with:
Sorry, no URL; she is on a tablet and can't display such 'unimportant' things! It was found thru a Google search for Dahlia Mary Eveline. The following came up when she clicked on one of the first few sponsored advertising images.

Call name: Dahlia Anemone Mary Eveline (some American sites use Evelyn)
(Scientific)
Name: Dahlia
Species: Dahlia
Genus: Dahlia
Family: Asteraceae
Order: Asterales
Hardiness: Zones 8-11
Duration: Perennial
Sun exposure: Full Shade
Soil: Loam, Sand, Clay
Soil PH: 6.1-7.5

DennisN · Jul 17, 2023

Tom.G said:

That Dahlia photo got my wife's attention (she is into colored-pencil artwork and wants to try sketching it).

After a bit of on-line research she came up with:
Sorry, no URL; she is on a tablet and can't display such 'unimportant' things! It was found thru a Google search for Dahlia Mary Eveline. The following came up when she clicked on one of the first few sponsored advertising images.

Call name: Dahlia Anemone Mary Eveline (some American sites use Evelyn)
(Scientific)
Name: Dahlia
Species: Dahlia
Genus: Dahlia
Family: Asteraceae
Order: Asterales
Hardiness: Zones 8-11
Duration: Perennial
Sun exposure: Full Shade
Soil: Loam, Sand, Clay
Soil PH: 6.1-7.5

Thanks a lot!

Andy Resnick · Jul 17, 2023

I got some help stringing together a series of images into a video, the idea is a continuous zoom. Hope you enjoy it!

berkeman · Jul 17, 2023

Andy Resnick said:

I got some help stringing together a series of images into a video, the idea is a continuous zoom. Hope you enjoy it!

Fun Easter Egg! What are the black rectangles around the IC? They look too fine-pitch to be wire bonding pads...?

Microscope photo of a silicon chip die with a pinkish metallic layout, a grid of fine rectangular cells and round test structures, bordered by a row of small dark pads, with a YouTube player overlay showing a 1:58 video titled Sequence 01 1.

Andy Resnick · Jul 18, 2023

berkeman said:

Fun Easter Egg! What are the black rectangles around the IC? They look too fine-pitch to be wire bonding pads...?

View attachment 329375

If I understand what you mean, those are indeed the bonding pads... I don't think there were actual wires, tho-not sure what the correct terminology is for modern stuff (bump bonding?)

berkeman · Jul 18, 2023

Andy Resnick said:

If I understand what you mean, those are indeed the bonding pads... I don't think there were actual wires, tho-not sure what the correct terminology is for modern stuff (bump bonding?)

Pretty amazing stuff. One of the previous companies I worked for did advanced IC packaging, but I was only peripherally involved in that part of the business. Looking it up now, I guess it is indeed possible...

https://semiengineering.com/scaling-bump-pitches-in-advanced-packaging/

Cross-section diagram of a 2.5D packaged chip: stacked DRAM slices on a base die with DA balls, TSV and DRAM PHY, linked by micro-bumps to an interposer, beside a System on a Chip with an HBM3 Memory Subsystem, all sitting on a package.

Interconnects for advanced packaging are at a crossroads as an assortment of new package types are pushing further into the mainstream, with some vendors opting to extend the traditional bump approaches while others roll out new ones to replace them.

The goal in all cases is to ensure signal integrity between components in IC packages as the volume of data being processed increases. But as devices continue to shrink and more components are added into advanced packages to process, move, and store more data, new technologies with more I/Os will be required. So while traditional solder balls and/or copper microbumps still will be used for the foreseeable future, new technologies are under development that can augment or replace those interconnect technologies, increasing the number of I/Os and providing more headroom for scaling.

As always, size and cost are the determining factors. Copper microbumps are smaller than solder balls/bumps, enabling more I/Os in packages. In today’s advanced packages, the most advanced microbumps involve a 40μm pitch, which equates to 20μm to 25μm bump sizes with 15μm spacing between the adjacent bumps on the die.

Flyboy · Jul 19, 2023

Doing some formation practice in DCS with some friends.

Three camouflaged fighter jets in green and brown camo flying above clouds, with mountains in the background; two in close formation in the foreground, with Swedish roundel markings visible on the nearer aircraft.

DennisN · Jul 19, 2023

Flyboy said:

Doing some formation practice in DCS with some friends.

Hmm... I recognize those signs. Swedish aircraft? Three crowns?

Flyboy · Jul 19, 2023

DennisN said:

Hmm... I recognize those signs. Swedish aircraft? Three crowns?

Correct! It's an AJS37 Viggen.

Ivan Seeking · Jul 19, 2023

Same photo with one inverted

Photo of a white SUV parked on a rocky shore at dusk, with its reflection in shallow water below appearing upside down, so the vehicle seems to stand on the water.

White boxy off-road SUV with headlights on, parked near the edge of a shallow pool, its reflection mirrored upside down in the still water below.

BillTre · Jul 19, 2023

The light intensities give it away.
Double reflected light will be less bright that singly reflected light.

DennisN · Jul 20, 2023

Andy Resnick said:

I got some help stringing together a series of images into a video, the idea is a continuous zoom. Hope you enjoy it!

That is so darn cool with the zoom ins!
I feel you are just one step away from getting an electron microscope

.
Probably hard to find in cheap, small versions, though...

Here's one listed, though I somehow don't think it's the real thing

:

AliExpress product listing for a 2MP 1080P WiFi USB microscope with 8 LED lights and a bendable stand, priced at $23.55, showing the handheld device on a stand beside a phone and a small insect on a plate.

Aah, imagine if electron microscopes were available in these sizes and at this price...
...what a wonderful world it would be

.

berkeman · Jul 20, 2023

DennisN said:

Aah, imagine if electron microscopes were available in these sizes and at this price...
...what a wonderful world it would be .

Except, you have to sit in a vacuum chamber to look through it...

Ibix · Jul 20, 2023

berkeman said:

Except, you have to sit in a vacuum chamber

That sucks.

DennisN · Jul 20, 2023

berkeman said:

Except, you have to sit in a vacuum chamber to look through it...

Ibix said:

That sucks.

What's all this fuss about vacuum? It's nothing, really.

Swamp Thing · Jul 20, 2023

DennisN said:

What's all this fuss about vacuum? It's nothing, really.

You can't breathe.

Andy Resnick · Jul 20, 2023

DennisN said:

That is so darn cool with the zoom ins!
I feel you are just one step away from getting an electron microscope .
Probably hard to find in cheap, small versions, though...

Here's one listed, though I somehow don't think it's the real thing :

Aah, imagine if electron microscopes were available in these sizes and at this price...
...what a wonderful world it would be .

The low price is matched by the low magnification! (from site: Magnification ratio: 50X-1000X)

It's practically an electron mAcroscope!

Andy Resnick · Jul 20, 2023

Ibix said:

That sucks.

My shopvac also blows :)

BillTre · Jul 20, 2023

That's an optical microscope mislabeled as an electron microscope by some stupid marketer, probably it is electronic and he got confused.

Even the smallest EMs (electron microscopes) take a table top. And yes, they do require a vacuum (those electrons have to be able to fly free).
They also require high voltages (not usually available at home) and a very vibration free install site.
Scanning EMs look at surfaces and are probably the smallest.
Transmission EMs (electrons going through sections) are larger and often higher power.

Ivan Seeking · Jul 20, 2023

BillTre said:

The light intensities give it away.
Double reflected light will be less bright that singly reflected light.

You can also see a couple of branches floating in the air.

Ivan Seeking · Jul 20, 2023

My favorite photo, when I was studying their work they always seemed bigger than life. But when I look at this, I try to see them as average people and not as the rock stars of physics. I know a bit about some of their personal lives but not much. I have to think their egos were huge! I tend to think an evening with that crowd would not be easy.

Black-and-white group photo of about two dozen men in suits seated and standing outdoors, with names labelled over them including Planck, Curie, Lorentz, Einstein, Langevin, Bohr, Dirac, Heisenberg, Pauli and Schrödinger.

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