Interesting chair. Bit pricy, but I tried it and like it!
–jeroen
Archive for September 17th, 2018
(88) swopper office chair: how to assemble and adjust – YouTube
Posted by jpluimers on 2018/09/17
Posted in LifeHacker, Power User | Leave a Comment »
Some interesting presentations by Arjen Kamphuis
Posted by jpluimers on 2018/09/17
The missing of [WayBack] Arjen Kamphuis (@ArjenKamphuis) | Twitter, made me revisit some of his past videos. In addition, I made the list quite a bit longer, as I was not aware he made so many presentations.
Many, but not all, of these videos are listed no YouTube video channel of Arjen Kamphuis.
Be sure to read the book Information Security for Journalists – Gendo he co-authored with Silkie Carlo.
- Missing Wikileaks Journalist Arjen Kamphuis and Youtuber Bill Smith; Zoon Politikon Streamed live on Sep 3, 2018
- Arjen Kamphuis – Privacy, digital crime & espionage; exec(ut) Published on Jul 26, 2018
- Presentatie Arjen Kamphuis – Partnerbijeenkomst Noordwijk Marketing; Visit Noordwijk Holland Published on Jul 2, 2018
- Wiv Sleepwet informatieavond PP Utrecht; Piratenpartij Published on Mar 15, 2018
- RTL4 Stemsoftware veiligheid rawtape; Arjen Kamphuis Published on Mar 14, 2018
- Defend yourself in this digital world. No one else will do it for you. | Arjen Kamphuis | TEDxDelft; TEDx Talks Published on May 9, 2018
- deel3 – Sleepwet keynote Arjen Kamphuis PP Utrecht; Piratenpartij Published on Mar 12, 2018
- Arjen Kamphuis talks to RT Int 27102017; Producers Published on Oct 28, 2017
- William Binney & Arjen Kamphuis – The Dangers of Success – Cambridge University 12-10-2017; Arjen Kamphuis Published on Oct 22, 2017
- William Binney & Arjen Kamphuis – The Dangers of Success. Cambridge University. 12/10/2017.; cueims cueims Published on Oct 15, 2017
- Arjen Kamphuis – The IT of another Europe; Openfest Bulgaria Published on Dec 1, 2016
- BalCCon2k16 – Arjen Kamphuis – The IT of another Europe; BalCCon – Balkan Computer Congress Published on Oct 2, 2016
- Arjen Kamphuis Keynote spreker | PlanMen WFM congres 2016; PlanMen Published on Sep 28, 2016
- Ancilla Tilia interviewt Arjen Kamphuis; Welk probleem zijn we ook al weer aan het oplossen?; Cafe Weltschmerz Published on Mar 12, 2016
- Ancilla Tilia en Arjen kamphuis; Hoe betrouwbaar zijn stemcomputers?; Cafe Weltschmerz Published on Apr 29, 2016
- Ancilla Tilia en Arjan Kamphuis; De Panama Papers, de context en de media; Cafe Weltschmerz Published on Apr 20, 2016
- Arjen Kamphuis en Carlien Roodink over privacy en fintech; reinvent.money Streamed live on Oct 23, 2014
- Revolution 3.0: Arjen Kamphuis – Bitcoin FAQ – Symposium TwentseWelle; 100procentfat Published on May 7, 2014
- Privacy Enschede : Arjen Kamphuis, “Overheid past niet op onze privacy, dus doe het zelf.”; Dave Borghuis Published on Apr 26, 2014
- Arjen Kamphuis – How to Hide from the NSA | London Real; London Real Published on Jan 17, 2014
- Arjen Kamphuis – The Bitcoin Future | London Real; London Real Published on Jan 15, 2014
- Arjen Kamphuis – NSA & Drug Cartels | London Real; London Real Published on Jan 14, 2014
- Arjen Kamphuis – Hacktivist | London Real; London Real Published on Jan 12, 2014
- Arjen Kamphuis full interview – Transhumanisme; Arjen Kamphuis Published on Mar 4, 2012
- Arjen Kamphuis – Open IT strategie – Ubuntu-NL; profox111 Published on Mar 1, 2008
–jeroen
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Satellite internet is awfully slow for interactive use
Posted by jpluimers on 2018/09/17
A while back, Thomas Mueller assumed that Satellite internet could be an alternative for rural areas in Germany: [WayBack] > Auch der Internet-Anschluss über Satellit funktioniere allenfalls quälend langsam <Das kommt mir aber ziemlich seltsam vor… – Thomas Mueller (dummzeuch) – Google+ as a response to [Archive.is] Telekom-Posse: Wirt soll eine Million Euro für schnelles Internet zahlen – WELT.
So I summed up what throttling to 600 (optimistic) or 1000 millisecond (realistic) latency on a 10 megabit connection means: awfully slow for interactive use.
The problem with satellite based internet is latency times: 500 milliseconds is the physical minimum for a geostationary connection. It can easily double with overbooked connections (default with consumer DSL/Cable/Fiber).
The latency combined with the very chatty nature of most applications, is the real killer for your experience.
Compare that to my speeds 2 years ago: https://wiert.me/2015/10/05/fiber-to-fiber-speed-beats-cable-to-fiber-speed-by-a-factor-2-all-three-internet-connections-are-in-the-same-house/
I just did a comparison with the fiber connection at my brother (who lives some 20 miles away) and work too and re-checked the fiber connections in the article (they stayed the same).
- fiber 1 = home
- fiber 2 = home
- fiber 3 = brother
- fiber 4 = work
Traceroute results:
- fiber 1 to fiber 2: 5 milliseconds
- fiber 3 to fiber 2: 8 milliseconds
- fiber 4 to fiber 2: 4 milliseconds
- cable to fiber 2: 10 millseconds
- ADSL to fiber 2: 15 millseconds
With these, you can have > 50 connections per second.
Satellite gives you 2 connections per second if you are lucky.
The blog page takes ~160 web requests.
- DOM content load ~ 1.0 seconds
- Full load finished ~2.2 seconds
- Render finished ~5.0 seconds
I throttled it down to Satellite speed:
- 10 megabit downstream
- 2 megabit upstream
- 600 millisecond latency
Now this is the load:
- DOM content load ~ 2.9 seconds
- Full load finished ~9.9 seconds
- Render finished ~10.0 seconds
Increasing the latency to 1000 milliseconds brings this:
- DOM content load ~ 4.2 seconds
- Full load finished ~11.8 seconds
- Render finished ~14.9 seconds
Fully loading gmail.com or booking .com with 1000 millisecond latency takes over 30 seconds.
References:
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Posted in Internet, Power User | 2 Comments »
When Windows 8.1 gives 80070643 on applying Office 2013 SP1
Posted by jpluimers on 2018/09/17
Steps to try first:
- Check
%windir%\Windowsupdate.log(on my system, it did not reveal anything special) - In an administrator command prompt, run
sfc /scannow(which takes a few minutes to run) - Reboot
- Run Clean Manager
%windir%\System32\cleanmgr.exe(ensure to clean up update files: it can take tens of minutes to run) - Reboot
- Download the SP1 files (I needed 32-bit x86)
- Install SP1 manually
- If it still hangs:
- In
Appwiz.cpltry a “Repair” of the Office 2013 installation - If it works: Reboot, otherwise:
- Uninstall Office 2013
- Disable the network adapter
- Reboot
- Check if KB3173424 is installed (check it with
Appwiz.cpl)- if not: download on a different machine, transfer over USB, install, then reboot
- Check ifKB3172614 is installed (which has a younger Windows Update Client)
- if not: downloadon a different machine, transfer over USB, install, then reboot
- Enable the network adapter
- Let Windows scan for updates and install them
- If you get an error 80070463 or 80070663: just reboot and retry the updates.
- Reboot
- Run Clean Manager
- Install Office 2013
- Reboot
- In
- Let Windows scan for updates and install them
- Reboot
- Run Clean Manager
- Reboot
The KB3172614 should also alleviate long during (dozens of minutes) high CPU usage of svchost.exe and TiWorker.exe when searching for Windows updates.
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Posted in Office, Office 2013, Power User, Windows, Windows 8.1 | Leave a Comment »
