Lifeboat Foundation

Aerogel–aerogel composites are prepared by embedding highly insulating granular silica aerogel (1–2 mm, 5–58 vol.%) into ambient pressure dried resorcinol-formaldehyde (RF) aerogel. The organic RF aerogel matrix is synthesized via a sol–gel reaction of resorcinol (1,3-dihydroxybenzene) and formaldehyde in deionized water with Na₂CO₃ as the catalyst. Plates around 90 × 195 mm² with a thickness of 19–25 mm are obtained and can be processed for application by sawing and grinding. A theoretical model for the volume-based surface area was used to show that the matrix aerogel around the silica aerogel grains is affected by their presence. Composites have a density 0.19 ≤ ρ ≤ 0.27 g/cm³ and a thermal conductivity at room temperature between 0.026 and 0.053 W/mK. Composites can be used as thermal insulation material in a normal temperature range < 200 °C due to the decomposition of the organic phase above 200 °C.

Maxwell’s demon is a machine proposed by James Clerk Maxwell in 1897. The hypothetical machine would use thermal fluctuations to obtain energy, apparently violating the second principle of thermodynamics. Now, researchers at the University of Barcelona have presented the first theoretical and experimental solution of a continuous version of Maxwell’s demon in a single molecule system. The results, published in the journal Nature Physics, have applications in other fields, such as biological and quantum systems.

“Despite its simplicity and the large amount of work in the field, this new variant of the classical Maxwell demon has remained unexplored until now,” notes F\xE8lix Ritort, professor from the Department of Fundamental Physics of the UB. “In this study, we introduced a system able to extract large amounts of work arbitrarily per cycle through repeated measurements of the state of a system.”

The LG Wallpaper TV is the thinnest display I’ve ever seen or held. It’s thinner than a smartphone and I can easily pick up the 65-inch! It uses LG’s OLED technology so you’ve got super dark blacks, vibrant colors and the overall picture quality you’ve come to expect from OLED. Because the Wallpaper TV is so thin it connects to an external sound bar speaker for power and video connections. The speaker is louder than standard TV speakers and features Dolby Atmos capabilities.

LG Signature OLED TV W product page — http://geni.us/UnboxW7US
LG Signature OLED TV W on Amazon — http://geni.us/UnboxW7a

Continue reading “Unboxing The Mind Bending Wallpaper TV… — YouTube” »

If cracks in concrete can be fixed when they’re still tiny, then they can’t become large cracks that ultimately cause structures such as bridges to collapse. It is with this in mind that various experimental types of self-healing concrete have been developed in recent years. One of the latest utilizes a type of fungus to do the healing.

Circa 2017

It’s there… and it’s not there.

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In the world of Halo, Master Chief is a super soldier outfitted with one of the most advanced sets of body armor ever produced by mankind. So how bullet proof if Master Chief? Master Chief Doesn’t Want to Die.

Continue reading “HOW BULLETPROOF IS MASTER CHIEF — Halo Science” »

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We usually think of microwaves as waves that heat things up, usually leftover food, but did you know that they can also cool things down? For example, physicists recently decided to use them to freeze atoms, and attempts have been very successful: They managed to cool them down to within a millionth of a degree of absolute zero (–273.15°C or −459.67°F).

The University of Sussex team, led by Winifried Hensinger, had their results published in Physical Review Letters.

Continue reading “Scientists Freeze Atoms to Near Absolute Zero” »

Aragón may have gained power as nearby cities collapsed.

The more researchers look, the more multifaceted the risk factors appear — and the more we learn about how the brain works and develops.