Skip to main content

Weight for time?

Heinrich Päs (U Wuerzburg, .de) got bored with weighting for time (since gravity is now potentially switchable), and took a few shortcuts so now he can “find a metric where the null, weak and dominant energy conditions are violated in the bulk, but satisfied on the brane” which means that he can then deal with “gravitons or gauge-singlet (“sterile”) fermions propagating in the extra dimension [which] may be manipulated in a way to test the chronology protection”.

To put this in another, simpler way: Heinrich can “travel” in time — or to put it a third, slightly less charicatured way: Heinrich can measure parts of reality which exist in a different time-frame.

And as well as another scientist (a German-sounding American, it seems) participating, it turns out that Hawaii (the US equivalent of Australia’s neighbour New Zealand in many ways, including having odd collections of beasties) has contributed a scientist of their own — one Sandip Pakvasa — to help make this all possible (at the U of Hawaii, no less).

Comments

Popular posts from this blog

every-application-is-part-of-a-toolkit at work

I have a LibreOffice Impress slideshow that I wish to turn into a narrated video. 1. export the slideshow as PNG images (if that is partially broken — as at now — at higher resolutions, Export Directly as PDF then use ‘pdftoppm’ (from the poppler-utils package) to do the same). 2. write a small C program (63 lines including comments) to display those images one at a time, writing a config file entry for Imagination (default transition: ‘cross fade’) based on when the image-viewer application (‘display,’ from the GraphicsMagick suite) is closed on each one; run that, read each image aloud, then close each image in turn. 3. run ‘Imagination’ over the config file to produce a silent MP4 video with the correct timings. 4. run ‘Audacity’ to record speech while using ‘SMPlayer’ to display the silent video, then export that recording as a WAV file. 4a. optionally, use ‘TiMIDIty’ to convert a non-copyright-encumbered MIDI tune to WAV, then import that and blend it with the speech (as a quiet b

new life for an old (FTX) PSU, improved life for one human

the LEDs on this 5m strip happen to emit light centred on a red that does unexpectedly helpful things to (and surprisingly deeply within) a human routinely exposed to it. it has been soldered to a Molex connector, plugged into a TFX power supply from a (retired: the MoBo is cactus) Small Form Factor PC, the assorted PSU connectors (and loose end from the strip) have been taped over. the LED strip cost $10.24 including postage, the rest cost $0, the PSU is running at 12½% of capacity, consumes less power than a laptop plug-pack despite running a fan. trial runs begin today.

boundaries

pushing the actual boundaries of the physical (not extremes, the boundaries themselves) can often remove barriers not otherwise perceived. one can then often resolve an issue itself, rather than merely stonewalling at the physical consequences of the issue.