I’m in need of a high-voltage, low current DC power supply temporarily for an experiment in the lab, prices for these from the usual suppliers run into the hundreds of pounds. Given that all (all but the very best ones anyway) they consist of is a string of diodes and capacitors in a Cockcroft-Walton configuration, …
Author Archives: dtl
Easier said than done
I spent most of this afternoon attempting to attach two pieces of 0.25 micron Teflon tape to some larger Teflon blocks while wearing low-friction gloves. It wasn’t easy.
A vist to the Tate: Shibboleth
A lucky find in the rubbish and junk fallen into the crack of Doris Salcedo’s Shibboleth.
Fire
No pictures from the archives this week, mainly because I’ve misplaced the box full of photographs. Instead, here is a rather poor shot of the fire in Stratford earlier today. As seen from about two miles away at Mile End about an hour after it started.
The Oldest Road
High Road follows the path of an old Roman road from Colchester in Essex to London and is one of the oldest in the UK. It has been in use for at least two thousand years. The junction is where Whalebone Lane South and North meet the High Road. The areas of fields and allotments …