Toggle light / dark theme

Scientists have devised a way of fabricating a complex structure, previously found only in nature, to open up new ways for manipulating and controlling light.

The structure, which naturally occurs in the wing scales of some species of butterfly, can function as a photonic crystal, according to a new study by researchers at the University of Birmingham. It can be used to control light in the visible range of the spectrum, for applications for lasers, sensors, and also devices for harvesting solar energy.

Their computational study, published in Advanced Materials, demonstrates that the complex gyroid structure can be self-assembled from designer in the range of hundreds of nanometers.

In 1960, visionary physicist Freeman Dyson proposed that an advanced alien civilization would someday quit fooling around with kindergarten-level stuff like wind turbines and nuclear reactors and finally go big, completely enclosing their home star to capture as much solar energy as they possibly could. They would then go on to use that enormous amount of energy to mine bitcoin, make funny videos on social media, delve into the deepest mysteries of the Universe, and enjoy the bounties of their energy-rich civilization.

But what if the alien civilization was… us? What if we decided to build a Dyson sphere around our sun? Could we do it? How much energy would it cost us to rearrange our solar system, and how long would it take to get our investment back? Before we put too much thought into whether humanity is capable of this amazing feat, even theoretically, we should decide if it’s worth the effort. Can we actually achieve a net gain in energy by building a Dyson sphere?

Year 2022 😗😁


The Climate Foundation’s SeaForestation project has won a Milestone XPRIZE for carbon removal, from Elon Musk’s foundation.

According to the prize’s official site, the competition “is aimed at tackling the biggest threat facing humanity — fighting climate change and rebalancing Earth’s carbon cycle”.

Funded by Elon Musk and the Musk Foundation, this $100 million competition claims to be the largest incentive prize in history.

An oil tanker abandoned and anchored in the Red Sea could produce an oil spill that would spread over the southern half of the body of water and block ports, close desalination plants, and produce a food and water crisis for the people of Yemen.


A UN rescue plan for the rusting tanker off Yemen’s coast has ballooned in cost to $129 million. So far money raised is $34 million short.

Saw this coming 5 or 10 years back. Soon concept of being a model will be non existent. Probably by 2030. And, once can realistically animate and walk around and speak, end of actors and acting also.


Levi’s is partnering with an AI company on computer-generated fashion models to “supplement human models.” The company frames the move as part of a “digital transformation journey” of diversity, equity, inclusion and sustainability. Although that sounds noble on the surface, Levi’s is essentially hiring a robot to generate the appearance of diversity while ridding itself of the burden of paying human beings who represent the qualities it wants to be associated with its brand.

Levi Strauss is partnering with Amsterdam-based digital model studio Lalaland.ai for the initiative. Founded in 2019, the company’s mission is “to see more representation in the fashion industry” and “create an inclusive, sustainable, and diverse design chain.” It aims to let customers see what various fashion items would look like on a person who looks like them via “hyper-realistic” models “of every body type, age, size and skin tone.”

Levi’s announcement echoes that branding, saying the partnership is about “increasing the number and diversity of our models for our products in a sustainable way.” The company continues, “We see fashion and technology as both an art and a science, and we’re thrilled to be partnering with Lalaland.ai, a company with such high-quality technology that can help us continue on our journey for a more diverse and inclusive customer experience.”

Neurosity’s headset uses electroencephalogram technology, or EEG, to measure brain activity by placing small metal electrodes on a person’s scalp. If the electrodes detect decreased electrical activity in the brain, the Crown plays music and sounds, or pulses vibrations, hoping those actions will help the user focus.

But some developers, it seems, have taken Neurosity’s tech a step further, turning the Crown into a more traditional brain computer interface that can allow users to control a computer using only their mind.

One owner of the gadget claimed they’ve used it to drive a Tesla, moving the electric car short distances by doing some mental math, which signals to the device that the person wearing it is exerting a lot of cognitive effort.


Grimes got a new brain gadget for her 35th birthday.

Tesla Vision Park Assist provides visual and audio alerts of surrounding objects. This feature uses the occupancy network to predict high-definition outlines of objects 360 degrees around the car. Note: Tesla Vision Park Assist is for guidance purposes only and is not a substitute for an aware driver. Please be attentive and avoid obstacles as required.

This is after being parked for a while, interesting to see how park assist takes a bit to load previous data from before it was parked. Still really impressive work from the @Tesla team pic.twitter.com/LONqouXp85

A number of Tesla owners with vision-only cars who received update 2023.6.9 have shared initial videos of Vision Park Assist’s performance in real-world situations. Tesla Model 3 owner @EVBaymax, for one, observed that the distance estimates displayed in the vehicle are quite accurate, almost to the inch. The Model 3 owner actually verified Tesla Vision’s estimates with a tape measure, and it was quite accurate.

A Korean research team has developed a large-scale stretchable and transparent electrode for use as a stretchable display. The Korea Institute of Science and Technology (KIST) announced that a research team, led by Dr. Sang-Soo Lee and Dr. Jeong Gon Son at KIST’s Photo-Electronic Hybrids Research Center, has developed a technology to fabricate a large-area (larger than an A4 sized paper) wavy silver nanowire network electrode that is structurally stretchable with a high degree of conductivity and transparency.

Transparent electrodes, through which electricity flows, are essential for solar cell-and touchscreen-based display devices. An (ITO)-based is currently commercialized for use. The ITO-based transparent is made of a thin layer of metallic oxides that have very low stretchability and is very fragile. Thus, the ITO electrode is not well suited for flexible and wearable devices, which are expected to quickly become mainstream products in the electronic device market. Therefore, it is necessary to develop a new transparent electrode with stretchability as one of its main features.

A nanowire is tens of nanometers in diameter, and the nano material itself is long and thin like a stick. The small size of the nanowire allows it to be bent when an external force is applied. Since it is made of silver, a silver nanowire has excellent electrical conductivity and can be used in a random network of straight to fabricate a highly transparent and flexible electrode. However, despite the fact that silver nanowire is bendable and flexible, it cannot be used as a stretchable material.