An easy and fascinating read of a brief history to human kind. Definitely worth a read. There are four main periods highlighted in the book: The Cognitive Revolution (c. 70,000 BC, when Sapiens evolved imagination). The Agricultural Revolution (c. 10,000 BC, the development of agriculture). The unification of humankind (the gradual consolidation of human political organisations towards one global empire). The Scientific… Read More »
Run this command: > grep Revision /proc/cpuinfo and you should see some code print out like: Revision : a22082 Go to the site: https://elinux.org/RPi_HardwareHistory and search for the revision number. Done!
If you are trying to install Eclipse and you get the following error: The JVM shared library “/Library/Internet Plug-Ins/JavaAppletPlugin.plugin/Contents/Home/bin/../lib/server/libjvm.dylib” does not contain the JNI_CreateJavaVM symbol. You want to: Right click the installer file and select ‘show package contents’ Go to Contents and open Info.plist At the bottom of this file, you’ll see a commented section… Read More »
It is actually a bit of a pain removing Java from OSX but by that I mean it’s only 3 steps instead of 1. Basically run these commands here: sudo rm -rf “/Library/Internet Plug-Ins/JavaAppletPlugin.plugin” sudo rm -rf “/Library/PreferencePanes/JavaControlPanel.prefPane” sudo rm -rf “~/Library/Application Support/Java” Reference: http://osxdaily.com/2017/06/16/uninstall-java-mac/
If you have the neat T48 walkie talkies and you want to know the frequencies of the various channels, here they are for your convenience. USA (22 Channels) Mhz 462.5625 462.5875 462.6125 462.6375 462.6625 462.6875 462.7125 467.5625 467.5875 467.6125 467.6375 467.6625 467.6875 467.7125 462.5500 462.5750 462.6000 462.6250 462.6500 462.6750 462.7000 462.7250 For the 8 channel… Read More »
Look no further. Some interesting books on this list here: https://www.goodreads.com/shelf/show/naval-ravikant
If you were wondering what RAID stands for or what it means, here is a great link explaining it very clearly. https://www.digitalocean.com/community/tutorials/an-introduction-to-raid-terminology-and-concepts As a TL;DR version, RAID 0 = Zebra crossing ie striping. 2 HDD with half the data on each. 1 HDD breaks, you’ve lost half your data. But because it cannot be rebuilt,… Read More »
If you have logged in and seen a blue navigational bar in Confluence and wondered where did the options to create pages go then you are not the only one. The navigational bar should look like this: One reason is when your license has expired, you still have the ability to log in a view… Read More »
If you have this… and you want this… But you get this… Then try this… The secret is to go to File > Page Setup and then choose the paper size to be Borderless > Borderless. Then you can… Read More »
http://canyouseeme.org/ is a good responsive site that will do a port scan. It also helps to reboot your router if some of the rules are not doing what you expect them to do.