The Hammarkulle carnivals, Gothenburg, Sweden | Photos from Rallarvegen – the navvies' road in Norway | Portland, Oregon, USA – a nice & progressive city | Photos of the Andersson family from Långö 1942–1963 | Larvae in massive attacks on bird cherry trees

Welcome to diaforum.se


[Photo from the Hammarkulle carnival in 2022.]
© Photo by Wolfgang in 2022. Please click the image to watch some really stunning videos!

Wishing you all a nice summer season! Please enjoy four amazing videos from the Hammarkulle carnivals in 2022 & 2003, 2015, 2016. All the stunning photography was done by Wolfgang (a.k.a. RockOfAges00 at YouTube & Goth Town at Vimeo). Watch these joyful videos – The Hammarkulle carnivals, feel some real happiness and dance to the exciting music! Be happy!



Note: You can't see the Vimeo videos in fullscreen at this web page because the Vimeo code (the API) for that breaks the rules for well formed XML
and valid XHTML. But, if you click on the word vimeo, in the video player, you may watch the videos in fullscreen in a new tab in your web browser.

Please enjoy this lively video. It's a snippet of a much longer performance by the amazing saxophonist Grace Kelly and her musicians. (The whole performance was only available on demand October 1–15, 2020.) This live streamed performance was requested from the University of Nevada in Reno, USA and its School of the Arts – College of Liberal Arts, due to the ongoing COVID-19 pandemic. The performance was live streamed from and recorded in Grace Kelly's home studio in New York City on October 1, 2020.
“Grace Kelly has an electric charisma onstage that instantly ignites the room” Jon Batiste. In this video Grace Kelly and her musicians perform Lemons Make Lemonade. Lemons suggest sourness or difficulty in life, making lemonade is turning them into something positive or desirable. You may read more about Grace Kelly in my caption below the next video.
Hopefully there will be a COVID-19 vaccine available to all human beings around the world in 2022.


Enjoy this video with the young and amazing jazz musician Grace Kelly. Most of all, she is one of the greatest jazz saxophonists in the world, despite she is only 30 years old (born on May 15, 1992). In this video she performs with Julian Pollack on piano, Julia Adamy on electric bass guitar and Ross Pederson on drums.

Grace Kelly is also a singer, composer, songwriter and an educator in jazz music and improvisation. You can read more about her approach to music education in JAZZed ‒ The Jazz Educator's Magazine:
“Grace Kelly is reinventing the rules of jazz and jazz education one step at a time. A musical wunderkind who began learning classical piano at six and quickly transitioned into jazz piano, then saxophone by age 10, she was always meant to turn the music world on its ear. The alto sax player performed publicly for the first time at age 10 (you can find that performance on YouTube), then, at the behest of her music teacher Ken Berman, recorded her debut album Dreaming at age 12. It's been a wild ride ever since for the 30-year-old bandleader, singer, and songwriter.”


Enjoy this stunning, colorful video and listen to the MarchFourth Band playing their nice tune Fuzzy Lentil. In this video Anngela Burt and Jon Dutch from the Rose City Circus do their amazing acrobatics to the energetic music played by the MarchFourth Marching Band from Portland, Oregon, USA. Portland's wonderful nickname is Rose City.

This amazing video was filmed in July 2019 at the 50th anniversary of the Oregon Country Fair (OCF). An event that takes place close to Veneta in Oregon. It's held annually in July, but not in 2020 and 2021 due to the COVID‑19 pandemic. In hope for a new OCF-event in July 2022, please stay safe and healthy!


“The Three Musketeers” – Audun Lindhjem, Svanhild Lindhjem and Johs Steine – rode Rallarvegen, the navvies' road, in Norway on August 20, 2016. They rode by bicycle the 55 kilometers (34.2 miles) from Finse to Flåm. It is the same route I myself rode by bicycle on August 1, 2002 and also partially on August 1, 2006. Both in 2002 and in 2006 I rented my bicycle at the Finse 1222 bicycle rental (website in Norwegian), they also offer Rallarvegen packages with overnight stays at the Finse 1222 hotel (website in Norwegian).

Rallarvegen is the old navvies' road used by the navvies when they built the mountainous section of the Bergen Railway line in Norway. A navvy was a person employed to build the railway.

The navvies' road – Rallarvegen – was built in 1895–1902 (Rallarvegen's history in Norwegian) and the Bergen Railway line was officially opened on November 27, 1909. Please enjoy this amazing bike ride and video!


Five well illustrated subjects are now up at this website

[This is Sandå, the bridge over Sandåi, Rallarvegen, 
the old Bergen Railway track, and Sandåvatnet at 1265 meters above sea level.]
© Photo Conny Andersson 2006

This photo shows the bridge for Rallarvegen over Sandåi at Sandå, and the old Bergen Railway track towards Slirå. To the left of Rallarvegen is the beautiful lengthmen's house. A lengthman was a person employed to maintain a section of the railway. The house was built in 1913, and the architect was H. Kass. The lengthmen and their families lived here 1913–1969, now it is a private house.

To the right of Rallarvegen is the navvies' cottage at Sandå, where the navvies lived when the Bergen Railway was built in 1895–1909. A navvy was a person employed to build the railway.

  1. The Hammarkulle carnivals, Gothenburg, Sweden
  2. Photos from Rallarvegen – the navvies' road in Norway
  3. Portland, Oregon, USA – a nice & progressive city
  4. Photos of the Andersson family from Långö 1942–1963
  5. Larvae in massive attacks on bird cherry trees
[Photo of larvae chewing on a leaf of a bird cherry tree.]
© Photo Conny Andersson 2007

A larva is an active immature form of an insect. The larvae shown in my photos are coming from the eggs of the Bird-cherry Ermine moth — Yponomeuta evonymella — (Linnaeus, 1758). In Swedish this moth is named häggspinnmal.

About me and diaforum.se

My name is Conny Andersson and I am the manager of this website. I am a Swede. The photo below shows me as a two year old child in 1952.

[Conny Andersson at work in 1952.]
© Photo Hugo Andersson 1952, digitized by Conny Andersson on May 15, 2010

What is the meaning of diaforum? Dia- is a prefix, and it comes from the Greek word dia. The meaning of dia is through something. The word forum comes from Latin, and the literal meaning is “what is out of doors, is an agora” — a public open space used for assemblies. The World Wide Web and the Internet are such public open spaces for assemblies.

This website's HTTPS-server is located in Oslo

[Oslo and Karl Johans gate on August 2, 2006.]
© Photo Conny Andersson 2006

The Apache HTTPS-server (HyperText Transfer Protocol Secure) for this website is located in Norway, in Oslo near to the Akerselva river.

In Oslo you just have to pay a visit to The International Museum of Children's Art. See the world through the eyes of children!


About this website

As a rock solid platform for computing served the FreeBSD Operating System. That is a BSD (Berkeley Software Distribution - University of California, Berkeley) version of Unix.

I wrote the text, and the XML-markup with an extended version of the classic Unix vi Editor, the superb VIM Editor (Vi IMproved). I have used Unicode for character references. That adds an other step toward the strictness of XML. As a matter of fact all of the web pages at diaforum.se are well-formed and valid XML documents, hence the XML icon. (Although, there is one exception, The Hammarkulle carnivals' web page, so that its three nice Vimeo-videos might be watched in fullscreen. That is the one and only exception at this website, due to that the Vimeo API is not in compliance with the W3C-standard for valid XML.)

The Extensible Markup Language, XML 1.0 was first announced as a W3C (the World Wide Web Consortium) recommendation on February 10, 1998. The latest version of the XML 1.0 recommendation was announced on November 26, 2008 and last modified on February 7, 2013.

In XML there is no gap at all for faulty markup.

Restrictive proprietary data formats are not reliable to use for lasting documents, and secure exchange of information in computer networks.

About IPv6

Why IPv6 (Internet Protocol version 6)? The answer is that the pool of unassigned IPv4 addresses has been exhausted and today no more unique IPv4 adresses can be assigned. (IPv4 was the first version deployed for production on SATNET in 1982 and on the ARPANET in January 1983, back then there were no computers in every home and office, no smartphones, no tablets, no Internet of Things (IoT) and so forth that needed a unique IP address.)

The Internet Architecture Board (IAB), following discussions in the Internet Engineering Task Force (IETF), advises its partner Standards Development Organizations (SDOs) and organizations that the pool of unassigned IPv4 addresses has been exhausted, and as a result we are seeing an increase in both dual-stack (that is, both IPv4 and IPv6) and IPv6-only deployments, a trend that will only accelerate. Therefore, networking standards need to fully support IPv6. The IETF as well as other SDOs need to ensure that their standards do not assume IPv4.
The IAB expects that the IETF will stop requiring IPv4 compatibility in new or extended protocols. Future IETF protocol work will then optimize for and depend on IPv6.” (Read the full IAB Statement on IPv6, posted on 2016-11-07 by Cindy Morgan.)
IPv6 was standardized (RFC 8200) on July 14, 2017.

My domain diaforum.se is ready to fully operate via the Internet Protocol version 6. For a very verbose view of how nice IPv6 is implemented at diaforum.se, please see the IPv6 health check results for diaforum.se. My Internet hosting service provider is a company in Norway fully owned by the very skilled people working there. (I just use Mythic Beasts' IPv6 health check service because it's the best and most verbose one on the Internet, right now.)



Checkpoint W3C

[W3C tools for quality.]

Due to the Vimeo videos at the start of this web page I have to fall back to XHTML 1.0. The iframe tag is not allowed in XHTML 1.1 and the allowed object tag does not work in some browsers. And, you can't see the Vimeo videos in fullscreen at this website because the Vimeo code (the API) for that breaks the rules for well formed XML and valid XHTML.

Below you can run a parser to check for valid XHTML 1.0 at:

https://www.diaforum.se/ index.xhtml

And, check that: the Cascading Style Sheet is valid CSS Level 3



[Link to apache.org, because this website runs on an 
Open Source Apache https-server in Oslo, Norway.] [Check this website - diaforum.se is IPv6 ready! .]

The Hammarkulle carnivals, Gothenburg, Sweden | Photos from Rallarvegen – the navvies' road in Norway | Portland, Oregon, USA – a nice & progressive city | Photos of the Andersson family from Långö 1942–1963 | Larvae in massive attacks on bird cherry trees

[This web page is valid XHTML 1.0 .] [Valid CSS3! .]
Conny Andersson
Last modified: June 15, 2022