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How oxygen sneaks into a corked wine bottle long before the first pour

The main reason for sealing wine bottles with a cork is to protect the liquid from oxygen. However, it is not an impermeable barrier, and a small amount of air leaks in, which is not always entirely bad news. The gas helps the wine mature and develop a more complex flavor.

In a paper published in the journal Science Advances, researchers highlight several mechanisms that control how oxygen enters and behaves inside the bottle.

Oxygen is, in fact, a crucial consideration. Too much, and the wine can oxidize and spoil, while too little can stunt its development and lead to unpleasant aromas. So winemakers have a delicate balancing act to get it right.

Light-controlled microgripper bridges the gap between precision and force

For some time, researchers have used optical tweezers to manipulate tiny objects with incredible precision, using carefully controlled beams of laser light. So far, however, this technique has always come with strict limits on how much force it can exert.

Through new research published in Nature, a team led by Dong Wu at Anhui University, China, has unveiled an improved design: a miniature mechanical gripper controlled by light signals through an optical fiber.

Combining the precision of light-based tools with the gripping strength of mechanical devices, the device could make it far easier for researchers to manipulate and assemble objects at the microscale.

Bio-Computing: Making Computers with Human Neurons (Interview with FinalSpark)

Are human brain cells the computer chips of the future? Three companies are competing to make biocomputers out of human neurons, and using them to play Doom, detect explosive molecules, and more.

This is a conversation with Dr. Fred Jordan and Dr. Ewelina Kurtys of FinalSpark. We talk about the differences between AI’s \.

Neurobiological Mechanisms Underlying Qualia

Many of my essays are quite old. They were, in effect, written by a person who no longer exists in that my views, beliefs, and overall philosophy have grown and evolved over the years. Consequently, if I were to write on the same topics again, the resulting essays might differ significantly from their current versions. Rather than edit my essays to remain contemporary with my views, I have chosen to preserve them as a record of my past inclinations and writing style. Thank you for understanding.

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