The supermassive black hole, which weighs as much as 4.3 million suns, is only the second ever to be imaged.
Researchers have used a widespread species of blue-green algae to power a microprocessor continuously for a year—and counting—using nothing but ambient light and water. Their system has potential as a reliable and renewable way to power small devices.
The system, comparable in size to an AA battery, contains a type of non-toxic algae called Synechocystis that naturally harvests energy from the sun through photosynthesis. The tiny electrical current this generates then interacts with an aluminum electrode and is used to power a microprocessor.
The system is made of common, inexpensive and largely recyclable materials. This means it could easily be replicated hundreds of thousands of times to power large numbers of small devices as part of the Internet of Things. The researchers say it is likely to be most useful in off-grid situations or remote locations, where small amounts of power can be very beneficial.
A biotech threat intelligence group is gaining supporters as urgency mounts around an overlooked vulnerable sector.
The National Oceanic and Atmospheric Administration (NOAA) has shared the first images from its recently deployed GOES-18 weather satellite.
The stunning captures (below) were obtained by the satellite’s Advanced Baseline Imager (ABI) instrument as it orbited about 22,000 miles above Earth.
The ABI observes Earth via sixteen different channels. Each one detects energy at different wavelengths along the electromagnetic spectrum, enabling it to gather data on Earth’s atmosphere, land, and oceans. According to NOAA, data from ABI’s channels can be combined to create imagery known as GeoColor, which looks similar to what the human eye would see from space. Analyzing the data in different ways enables meteorologists to highlight and examine various features of interest.
The chemical composition and presence of metallic fragments also make lunar soil-less suitable for plant growth as compared to volcanic ash. However, the biggest takeaway from this experiment is still that scientists have somehow grown a plant in a soil sample taken from the Moon.
Emphasizing the importance of this result co-author and geologist Stephen Elardo said, from a geology standpoint, I look at this soil as being very very different from any soil you will find here on Earth. I think it’s amazing the plant still grows, right. It’s stressed, but it doesn’t die. It doesn’t fail to grow at all, it adapts.
Update: Meet Sagittarius A — Astronomers Reveal First Image of the Black Hole at the Heart of the Milky Way Today (May 12, 2022) at 9:00 a.m. EDT (6:00 a.m. PDT, 15:00 CEST) The European Southern Observatory (ESO) and the Event Horizon Telescope (EHT) project will hold a press conference to pres.
Update: Stunning Reveal: First Image of the Black Hole at the Center of Our Milky Way Galaxy
Today (May 12, 2022) at 9:00 a.m. EDT (6:00 a.m. PDT, 15:00 CEST) The European Southern Observatory (ESO
System represents a breakthrough in the real-life applicability of biophotovotaic devices.
Microprocessors can be powered using photosynthetic microorganisms in ambient light without the need for an external power source, new research shows. Led by Emre Ozer from Arm and Christopher Howe from the University of Cambridge, researchers in the UK, Italy and Norway introduced cyanobacteria Synechocystis sp. PCC6803 into an aluminium–air battery to create a biophotovoltaic device. The device is a similar size to an AA battery, is made from durable and mainly recyclable materials and does not require a dedicated light source to function. It is the first reported bioelectrochemical system capable of continuously powering a microprocessor outside of laboratory-controlled conditions.
‘We decided that we didn’t want to operate the system with a dedicated source of energy. We needed to prove that we can operate under ambient light, and we were able to do it,’ comments Paolo Bombelli, one of the lead researchers from the University of Cambridge.
The team tested the stability and biocompatibility of the aluminium substrate, and demonstrated that the system could continuously power an Arm Cortex-M0+ processor for six months under varied ambient conditions, within a temperature range of 13.8–30.7°C. The processor performed 1.23 × 1011 cycles of 45 minutes of computation followed by a 15-minute standby period. Supplied entirely by the biophotovoltaic cell, the processor drew an average current of 1.4μA with a voltage of 0.72V. The system only failed when an ice pack was used to lower the temperature to 5°C.