Shape of Electrons

For the first time, researchers have measured the shape of an electron as it moves through a solid. This achievement could open a new way of looking at how electrons behave inside different materials.

Their discovery highlights many effects that could be relevant to everything from quantum information science to electronics manufacturing.

Those findings come from a team led by physicist Riccardo Comin, MIT’s Class of 1947 Career Development Associate Professor of Physics and leader of the work, in collaboration with other institutions.

“We’ve essentially developed a blueprint for obtaining some completely new information that couldn’t be obtained before,” says Comin. His colleague and co-author, Mingu Kang, performed much of this research at MIT before continuing at Cornell University.
New angles on electron shape

Physicists have examined electrons for decades, but the wave-like aspect of these particles brings extra complexity. Electrons can be described not just as small points, but also as “wave functions.”  READ MORE...

Your Brain's Memory Resets

A new study from Cornell University reveals that sleep not only consolidates memories but also resets the brain’s memory storage mechanism. This process, governed by specific regions in the hippocampus, allows neurons to prepare for new learning without being overwhelmed. This insight opens potential pathways for enhancing memory and treating neurological disorders like Alzheimer’s and PTSD.

While everyone knows that a good night’s sleep restores energy, a new Cornell University study finds it resets another vital function: memory.

Learning or experiencing new things activates neurons in the hippocampus, a region of the brain vital for memory. Later, while we sleep, those same neurons repeat the same pattern of activity, which is how the brain consolidates those memories that are then stored in a large area called the cortex. But how is it that we can keep learning new things for a lifetime without using up all of our neurons?
Mechanisms of Memory Resetting

A new study published in the journal Science, finds at certain times during deep sleep, certain parts of the hippocampus go silent, allowing those neurons to reset.

“This mechanism could allow the brain to reuse the same resources, the same neurons, for new learning the next day,” said Azahara Oliva, assistant professor of neurobiology and behavior and the paper’s corresponding author.         READ MORE...

Sacred Bird Sacrificed to Thoth

Carol Ann Barsody and Frederic Gleach examine the over 1,500-year-old mummy bird. 

(Image credit: Cornell University)

An ancient Egyptian bird mummy, long forgotten in storage and mislabeled as a hawk, is finally getting its due now that researchers have digitally peered inside its wrappings.


The 1,500-year-old mummy, scientists learned, is not a hawk but likely a sacred ibis (Threskiornis aethiopica) — a wading bird with stilt-like legs and a long curved beak that the ancient Egyptians often sacrificed to Thoth, the god of the moon, reckoning, learning and writing.


"Not only was this once a living creature that people of the day may have enjoyed watching stroll through the water," Carol Ann Barsody, a masters student in archaeology at Cornell University, who spearheaded the project, said in a statement. "It also was, and is, something sacred, something religious."  READ MORE...