We present a synthesis of all the available empirical evidence in the light of recent theoretical developments for the existence of characteristic log-periodic signatures

2021 Sep 23

2019 Jan 9

2018 Dec 15

How far can a stack of n identical blocks be made to hang over the edge of a table? The question has a long history and the answer was widely believed to be of order log n. Recently, Paterson and Zwick constructed n-block stacks with overhangs of order n1/3, exponentially better than previously thought possible. We show here that order n1/3 is indeed best possible, resolving the long-standing overhang problem up to a constant factor.

2016 Dec 21

The Pannini projection is a mathematical rule for constructing perspective images with very wide fields of view.

2015 Mar 20

We can think of the rolling shutter effect being some coordinate transformation from the ‘object space’ of the real-world object, to the ‘image space’ of the warped image.

2014 Oct 14

2014 Aug 11

2013 Jan 16

2012 Aug 7

2010 Aug 8

2009 Jan 6

2007 May 13

2006 Jun 28

2006 Mar 28