Ken's blog

two clocks, one labeled "Time now" and the other set and labeled "45 minutes into the future".  above them, a sign readi...

consider the odd integers starting from 9.  bass drum hit if composite, snare drum if prime.  written in 6/4 time (or 6/8 time) , beats 1 an...

start with a set of consecutive primes.  compute all pairs positive differences among the set, and count the number of times each difference...

60/37 = 1.621621 is a good approximation to phi, the golden ratio, and 60 and 37 are nicely relatively prime.  below are multiples of 37 mod...

10/day = 0.42 / hour 100/week = 0.60 / hour 100/month = 0.14 / hour 1000/year = 0.11 / hour powers of 10 are easy to scale to your act...

project a dodecahedron onto the celestial sphere, then present each of the 12 faces as star chart images for a monthly calendar.  the images...

subdivide the Babylonian range 1 to 60 by a geometric progression, i.e., the values of 60^(A/b) for A integers from 0 to b. b=6 is pleasin...

honey famously supposedly has extremely long shelf life.  package or repackage honey into very sturdy containers for long-term storage.  wha...

the plethora of packages whose names end in "t64" recently added to Debian Sid (Unstable) change the time_t data type from 32 to 6...

conventional units of time include convenient subdivisions of 60, 24, and 12, but let's use only the metric unit of time (second) and me...

the weekday commute of humans on earth is a large movement of mass.  this movement, because it is not spherically symmetric, generates gravi...

consider a grid universe with one dimension of space and two dimensions of time.  array of cell states S[x,t1,t2]. initial state: (forall ...

if we observe the evaporation of a micro black hole, are we done with physics? of course, we would observe whether Hawking radiation is re...

these bananas (on Earth) need to get to Alpha Centauri in a week or else they will go bad.  can it be done without breaking the laws of spec...

the text file /usr/share/zoneinfo/tzdata.zi now packaged in Debian Bullseye makes it easy to enumerate all the timezones that the tzdata ti...