Lots of fun filming the latest Objectivity, which was a small "field microscope".
And here are some behind-the-scenes pics.
James films, Robert Boyle looks on
Objectivity fan Nico joined us
We've already created 30 Objectivity videos - watch them here.
Nui Dat was the main headquarters for the Australian forces in the Vietnam War.
I've heard the name many times because my dad was based there for his two tours of duty.
But it became more than just a name when I finally visited, and Dad took me to the top of "Nui Dat" itself!
While the Australian forces were mainly spread under the shade of a surrounding rubber plantation, Nui Dat actually means "small hill" or "clay hill" or "small dirt hill" (depending on who you ask).
The hill itself was at the centre of the Australian base, but was only really used by SAS troops.
And by dad for training his tracking dog, Caesar!
Nui Dat's SAS Hill in 1971 (image: Australian War Memorial)
Atop Nui Dat with dad
I'm a bit biased, but I really recommend my dad's book Trackers.
And more videos with dad are here, including this one:
Perhaps the most famous and beautiful brown paper created during Numberphile is the Epic Circles masterpiece.
Simon Pampena created it during the filming of his 26-minute opus.
I have kept it for a long time, thinking I may have it framed in my office!
But today I have listed it for auction on ebay.
HERE IT IS ON EBAY with more pictures
I really think it is gorgeous and, if you enjoy Numberphile, it would look superb framed on the wall!
Some people may be aware I recently lost my father-in-law David to cancer.
The care he received in his final weeks was very special and, in some small way, I want to ensure it remains available to all.
Half the proceeds raised from the paper sale will go to the Cransley Hospice in Northamptonshire. (you can also just make a small donation through this Numberphile page)
The other half will go to Macmillan Nurses via a fundraising venture my niece is undertaking.
(Special thanks to Simon who has supported this auction also)
Just happy snapping some lightning in the Atlas Mountains this evening!
The text comes from a 1965 printing of a book called 1001 Questions About Astronomy.
The pictures come from the recent New Horizons fly-by of Pluto.
The surface of Pluto
More of Pluto's surafce
Pluto and Charon
Pluto's moon Charon
More at Sixty Symbols, including some good old-fashioned pot stirring!
Great pleasure to meet and interview astronaut Tim Peake at the Johnson Space Center, in Houston.
Interview part one:
British Tim is due to fly to the International Space Station in December, on his Principia Mission.
Pics from the interview by Destin Sandlin.
