Random Photos

[Point Conception]

We took the coast route to seafood market

 

[DennisN]

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]

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.

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

 

[pinball1970]

A little bit of green in Hyde.

 

[pinball1970]

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

 

[pinball1970]

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.

 

[phinds]

central library

Where?

 

[pinball1970]

Where?

Manchester.

 

[jtbell]

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

 

[Tom.G]

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]

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]

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

 

[berkeman]

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...?

 

[Andy Resnick]

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]

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/

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]

Doing some formation practice in DCS with some friends.

 

[DennisN]

Doing some formation practice in DCS with some friends.

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

 

[Flyboy]

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

Correct! It's an AJS37 Viggen.

 

[Ivan Seeking]

Same photo with one inverted

 

[BillTre]

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

 

[DennisN]

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 :

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

 

[berkeman]

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]

Except, you have to sit in a vacuum chamber

That sucks.

 

[DennisN]

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

That sucks.

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

 

[Swamp Thing]

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

You can't breathe.

 

[Andy Resnick]

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]

That sucks.

My shopvac also blows :)

 

[BillTre]

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]

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]

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.