Eclectic junk from the four corners of the ‘Net. And pictures too!
This is an excellent exploit of basic physics.
Because oil floats on water, despite the massive heat (163 degrees Celsius) the goldfish simply stay away from the surface and all is well. They eat the crumbs of croquettes and other fried foods that fall to the bottom, and can live in there for 5-10 years as they happily clean away, ignorant to the fact that certain death awaits any potential escapees.
[via boingboing kottke]
Deep-fry diving for goldfish in Japan
Icy hot!
“The three phases of water as we know them — cold ice, room temperature liquid, and hot vapor — are actually only a small part of water’s repertory of states,” says Sandia researcher Daniel Dolan. “Compressing water customarily heats it. But under extreme compression, it is easier for dense water to enter its solid phase [ice] than maintain the more energetic liquid phase [water].”
In the Z experiment, the volume of water shrank abruptly and discontinuously, consistent with the formation of almost every known form of ice except the ordinary kind, which expands.
(One might wonder why this ice shrank instead of expanding, given the common experience of frozen water expanding to wreck garden hoses left out over winter. The answer is that only “ordinary” ice expands when water freezes. There are at least 11 other known forms of ice occurring at a variety of temperatures and pressures.)
Everyone knows about hot air balloons. A great big sack filled with hot air that floats as if by magic in the sky. Ok, not by magic, they float because the hot air takes up less space than cold air so it weighs less and thus floats. I’m sure most people think that the air needs to be heated by great honking propane torches to obtain positive buoyancy but that just isn’t the case. With a thin enough envelope (ballooning lingo for the thing that holds the hot air) you can use the mighty power of the sun to do this job on the cheap and clean. This site is loaded with useful info (some may be in French however) and data for your own personal exploration of the atmosphere. Did I say personal? Yep, you bet. Some people have actualy build solar balloons large enough to lift a person. There are even instructions on how you can build and use a 1.9 meter diameter mini solar balloon. I’m surprised that this hasn’t graced the pages of MAKE magazine yet.
I remember this film when it was shown on ‘The Wonderful World of Disney’ and a fantastic speculative book on space exploration that had stills from this on it. Man, I loved that book! I remember the plant that used a clear membrane to focus the sun light into a killing beam of death that it used to zap passing critters. I tell you, it that don’t set a child’s mind spinning with ideas I don’t know what will.
The entire clip can be bought on the DVD set "Walt Disney Treasures – Tomorrowland: Disney in Space and Beyond"
[via Boing Boing]
Plan Life On Mars (1957 Disney Animation)
Special agent Greg on detachment in the Interzone had this to say recently:
It has begun: this link is to a site that is ostensibly to sell Sodium Dichloroacetate for experimental use in pets with terminal cancer. This compound has received much press recently due to some encouraging preliminary lab test results. Obviously, desperate people are going to be purchasing and using this compound long before clinical trials even begin.
It may very well interfere with conventional treatments, be harmful in itself, or be ineffective. DCA is known to cause peripheral neuropathy (tingling and numbness of the extremities) with chronic use.
On the other hand, if it proves to be the miracle cure that some are hyping, we will begin hearing reports in the next couple months of people with untreatable conditions making miraculous recoveries.
I think he is absolutely right. Expect to see more and more people rolling their own treatments with DCA in the near future. For better or for worse.
Buy DCA – DCA Sodium Dichloroacetate Cancer Treatment for Pets
This is just perfect! Using a Magna Doodle as an output device for a computer is just brilliant.
What do you get when you mix a 1970’s style analog chart recorder, an 8-bit microcontroller, and a Fisher-Price Doodle Pro? A truly 21st century toy: An analog PlotBot with e-paper display technology!
Our machine is based around a vintage analog X-Y data recorder. Its original purpose in life was to perform basic laboratory data collection, plotting two voltages against each other, and was one of the primary tools for that purpose right up until computers took over that job in the 1980’s. Because they were once so common and are now generally obsolete, it’s quite easy to get one of your own. There are usually several under $50 on eBay at any given time, and that’s where we got ours. …
The other major modification that we’ve made is that we’ve replaced the pen and paper with what seems like out of reach technology: an inexpensive and readily available e-paper display: the panel from a Doodle Pro. …
The Doodle Pro is a descendent of the Magna Doodle, a classic children’s toy dating to 1974. (I’m not sure what makes this a “Pro” anything, however.) It uses a simple magnetophoretic display, where ferromagnetic particles are suspended with near-neutral buoyancy in an opaque, viscous white liquid. Using a magnetic stylus, you can attract the black particles to the top surface, or with a magnetic “eraser” on the bottom side, pull the particles away, leaving only the white liquid visible.
Evil Mad Scientist Laboratories – An AVR-based Analog Plotbot with an E-Paper Display