Login
Discover
Waves
Communities
Login
Signup
Dr Jonathan Shock
@jonshock
37
Senior lecturer in mathematics and applied mathematics
Followers
71
Following
7
Follow
Resource Credits
Available
Used
Location
Cape Town
Website
http://www.mathemafrica.org
Created
2018-03-13 11:49
RSS Feed
Subscribe
Posts
Blog
Posts
Comments
Communities
Wallet
jonshock
reading
2018-04-03 18:16
The birds and the bees, and weekends of reading
I try and get away once a month. Not too far, mostly within a two hour drive. I find a little village which looks like it has some nice cafes and restaurants, and find a cheap airbnb. My needs are not
$ 0.688
2
4
jonshock
sundog
2018-03-24 09:55
When your crystals are like plates, you get sundogs
In the last post ( we saw how a 22 degree solar halo was created from hexagonal column crystals of ice. These crystals take all different orientations in the sky and thus give rise to the light that reaches
$ 0.655
3
4
jonshock
solarhalo
2018-03-21 15:27
The beauty of the 22 degree solar halo
(taken by me back in 2008) A photon is produced in a fusion reaction at the centre of the sun a million years ago. It whizzes out, carrying momentum, and soon after it has left the fused atoms, it collides
$ 0.719
7
4
2
jonshock
effectivealtruism
2018-03-20 20:43
Free books - who would like to find out more about effective altruism?
A couple of years back I listened to a podcast by Tim Ferriss where he interviews Will Macaskill, a professor of philosophy at Oxford University. A good portion of the interview is about the ideas of effective
$ 0.750
3
1
1
jonshock
donaldtrump
2018-03-19 13:07
Heeeerrrrre's Donnie!!
The Shining: A man wants to find the perfect place to really boost his career. He finds a huge house which he will have complete control over for a period of time. The house has a damaged past, but he
$ 0.775
2
2
jonshock
atmosphericoptics
2018-03-18 15:42
The green flash - legend and reality
Legend has it that just as the sun sets, if the conditions are perfect, then you will see a brilliant flash of green. Such phenomena have been talked about by sailors and travelers for centuries. With
$ 0.780
3
1
