Posts Tagged ‘howto’

A Step by Step Guide to How to Wipe a Mac Clean

January 18, 2023

https://www.backblaze.com/blog/how-to-wipe-a-mac-hard-drive/ QT:{{”
How to Wipe an Intel-based Mac
Starting with your Mac turned off, press the power button, then immediately hold down the command and R keys and wait until the Apple logo appears.
When the Recovery window appears, select Disk Utility.
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August 23, 2020

contact ITS for Mark

April 7, 2019

The helpdesk person I spoke to said to connect to the network through other means and try going to

http://wifi-config.yale.edu/

Great fix after passwd change

March 2, 2019

itunes – How do I find out what computers I have authorized? – Ask Different

February 24, 2019

Find My Device – Android

February 3, 2019

December 8, 2018

Looks like it’s hard to like a G suite acct to the voice asst

The Magnetohydrodynamic Drive Is Real—and You Can Build One

January 27, 2018

The Magnetohydrodynamic Drive Is Real – & You Can Build One
https://www.Wired.com/story/the-magnetohydrodynamic-drive-is-realand-you-can-build-one/ Great illustration of the cross product & the weird way #magnetism makes things curl around

QT:{{”
“In the diagram, I have a magnet with the north side pointing down. This produces a magnetic field that also mostly points down (as indicated by the red arrow). Now for the awesome physics part. If you have an electric charge moving in a magnetic field, there is a force on that charge—the magnitude of this force depends on the strength of the magnetic field, the value of the electric charge, and the velocity of the charge. This magnetic force can be expressed as the following equation:

If don’t have a degree in physics, there are three things that are crazy about this equation. First, there is this weird arrow symbol over some of the variables. Nothing to be alarmed about—this just means these are vector quantities so that the direction also matters. Next there is this vector B. This represents the value of the magnetic field. Honestly, I’m not sure why we (physicists) always use B for the magnetic field—but we do. Lastly, there is that big “X”. That is not the sign for multiplication, that is the sign for the cross product. I guess I should also point out that “q” is the symbol for the electric charge.”

“}}

A poorly written paper on a lovely rodent

June 29, 2014

A poorly written paper on a lovely rodent: Nice rewrite of abstract showing #howto improve readability
http://whyevolutionistrue.wordpress.com/2014/06/26/a-poorly-written-paper-on-a-lovely-rodent HT @carlzimmer

@carlzimmer · Jun 26 :
An example of bad science writing analyzed by @Evolutionistrue
http://whyevolutionistrue.wordpress.com/2014/06/26/a-poorly-written-paper-on-a-lovely-rodent/ … Real q is, why don’t scientists get trained to write?

May 26, 2012