Article archives

MI weekly selection #376

MI weekly selection #376

Weekly Selection

By César Tomé

Puhahonu shield volcano is Earth’s biggest Scientists say new research shows the Puhahonu volcano, which is about 1,100 kilometers northwest of Honolulu in the Pacific Ocean and contains about 150,000 cubic kilometers of rock, is the world’s largest shield volcano. About a third of it rises above the seafloor, while the rest is buried under […]

The magnetism of triangulene

The magnetism of triangulene

MaterialsNanotechnologyQuantum physics

By DIPC

Graphene is a diamagnetic material, this is, unable of becoming magnetic. However, a triangular piece of graphene is predicted to be magnetic. This apparent contradiction is a consequence of “magic” shapes in the structure of graphene flakes, which force electrons to “spin” more easily in one direction. Triangulene is a triangular graphene flake, which possesses […]

MI weekly selection #375

MI weekly selection #375

Weekly Selection

By César Tomé

Ridges on moon may indicate tectonic activity Scientists who studied temperature data from a NASA orbiter say ridges on the moon may be evidence of recent tectonic activity. “From this paper, it appears that the moon may still be creaking and cracking — potentially in the present day — and we can see the evidence […]

Second-harmonic generation in a quantum emitter – metallic nanoparticle hybrid

Second-harmonic generation in a quantum emitter – metallic nanoparticle hybrid

Condensed matterMaterialsNanotechnologyQuantum physicsTheoretical physics

By DIPC

When two photons with the same energy interact with a nonlinear material, they “combine” and generate a new photon with twice the energy of the initial photons. More precisely, two photons at the fundamental frequency are absorbed by a plasmonic structure to emit one photon at the second-harmonic frequency. This is called second-harmonic generation. Second-harmonic […]

MI weekly selection #374

MI weekly selection #374

Weekly Selection

By César Tomé

Ice avalanches linked to features in Mars craters Scientists who analyzed open-source multispectrum and radar data from NASA with a 3-D modeling software program and separate mathematical calculations say large, fast-moving ice avalanches may have created debris in two craters on Mars. The hupothesis could help researchers understand the moraine-like features in the planet’s north […]