Lifeboat Foundation: Safeguarding Humanity
Toggle light / dark theme

Blog – Page 5810

Similar projects in Denmark have used recaptured heat from smaller structures, such as supermarkets, to supply a nearby building or two. The Facebook project scales the technology to a level not yet reached in the world by producing up to 25 MW per hour of usable heat.

“Facebook opened their new data center in Odense,” said Denmark’s Minister of Climate, Energy, and Utilities, Dan Jørgensen, on Instagram. “It’s based on renewable energy only (from their own wind farm) and feeds their surplus heat into the district heating system. Good news for the transition to green energy!”

As a nation, Denmark has set a goal to eliminate the use of coal by 2030. The heat recovery project supports Odense’s even more aggressive goal to phase out coal (which 30 percent of the city still depends on for heat) by 2023 — a modern feat for a city that just celebrated its 1,031st anniversary. Facebook’s data center is estimated to reduce Odense’s demand for coal by up to 25 percent.

Read more | >

To make fusion energy a viable resource for the world’s energy grid, researchers need to understand the turbulent motion of plasmas: a mix of ions and electrons swirling around in reactor vessels. The plasma particles, following magnetic field lines in toroidal chambers known as tokamaks, must be confined long enough for fusion devices to produce significant gains in net energy, a challenge when the hot edge of the plasma (over 1 million degrees Celsius) is just centimeters away from the much cooler solid walls of the vessel.

Abhilash Mathews, a PhD candidate in the Department of Nuclear Science and Engineering working at MIT’s Plasma Science and Fusion Center (PSFC), believes this plasma edge to be a particularly rich source of unanswered questions. A turbulent boundary, it is central to understanding plasma confinement, fueling, and the potentially damaging heat fluxes that can strike material surfaces — factors that impact fusion reactor designs.

To better understand edge conditions, scientists focus on modeling turbulence at this boundary using numerical simulations that will help predict the plasma’s behavior. However, “first principles” simulations of this region are among the most challenging and time-consuming computations in fusion research. Progress could be accelerated if researchers could develop “reduced” computer models that run much faster, but with quantified levels of accuracy.

Read more | >

A team of physicists from the Massachusetts Institute of Technology (MIT) has discovered a hybrid particle that could pave the way for smaller and faster electronic devices in the future.

The hybrid particle, which was found to be a mashup of an electron and a phonon (a quasiparticle formed by vibrating atoms in a material), was detected in a strange, two-dimensional magnetic substance.

Probably the most intriguing aspect of the discovery, however, is that when the scientists measured the force between the electron and phonon, they saw that the glue, or bond, was 10 times stronger than what had previously been estimated for other known electron-phonon hybrids, according to the study which has been published in the journal Nature Communications.

Read more | >

Bioelectricity, the current that flows between our cells, is fundamental to our ability to think and talk and walk.

In addition, there is a growing body of evidence that recording and altering the bioelectric fields of cells and tissue plays a vital role in and even potentially fighting diseases like cancer and heart disease.

Now, for the first time, researchers at the USC Viterbi School of Engineering have created a molecular device that can do both: Record and manipulate its surrounding bioelectric field.

Read more | >

Circa 2020

Harnessing the destructive potential of force and rotation, cutting tools like saws, drills, and angle grinders can obliterate the superlative properties that materials work so hard to perfect. And even when materials are designed to work against the power of these tools, the materials still often fail.

So what if instead we designed materials to work with the power of cutting tools rather than against them? While that may sound counterintuitive, it is just what an international group of researchers has done—and their preliminary tests show the ceramic–metal composite material they designed resists damage beyond shallow surface cuts.

Continue reading “Bio-inspired ceramic–metal composite stands its ground against cutting tools” | >