5 Sentences:
The Bitcoin have around 100 million transactions per year. That is a tiny fraction of the more than 500 billion transactions made by the global financial system. Nevertheless, Bitcoin uses roughly one percent of the world’s energy to mine currency that’s a mind-blowing figure. Decentralized nature of Bitcoin would allow countries like Iran to avoid economic sanctions by repurposing sanctioned oil destined for export to instead fuel Bitcoin mining. That’s a big threat.
2 Minutes speaking:
Bitcoin’s encryption requires users to “mine” the currency through deploying computational resources to solve complex mathematical equations. Bitcoins are distributed in a regimented and random way, meaning for miners, the only way to increase their chances of striking digital gold is by using more and more computational resources to mine.
These machines fuel the Bitcoin economy, which totals around 120 million transactions per year. That is a tiny fraction of the more than 500 billion transactions made by the global financial system.
Nevertheless, he estimates that Bitcoin uses roughly one percent of the world’s energy to mine currency, a mind-blowing figure that will only rise.
De Vries’s also highlights that secondary impacts will come from the short lifespans of current mining devices: “This results in a big pile of electronic waste from specialized equipment that cannot be repurposed.”
de Vries finally points out that the anonymous, decentralized nature of Bitcoin would allow countries like Iran – where eight percent of global Bitcoin manufacture is now based – to avoid economic sanctions by repurposing sanctioned oil destined for export to instead fuel Bitcoin mining. As these sanctions were originally put in place to prevent the proliferation of nuclear weapons, de Vries credibly points out that Bitcoin’s spillover now includes international security concerns.
Source: https://www.technologynetworks.com/informatics/news/bitcoins-jawdropping-energy-consumption-rivals-londons-could-impact-global-security-346538
To test the theory, BYU psychology professor Chad Jensen and researchers from the Cincinnati Children's Hospital Medical Center compared the sleep outcomes of individuals in three categories: those who used their phone at night with the Night Shift function turned on, those who used their phone at night without Night Shift and those who did not use a smartphone before bed at all.
The study included 167 emerging adults ages 18 to 24 who use cell phones daily. They were asked to spend at least eight hours in bed and wore an accelerometer on their wrist to record their sleep activity.
It showed that the group that got seven hours of sleep, which is closer to the recommended eight to nine hours a night, saw a slight difference in sleep quality based on phone usage. The individuals who did not use a phone before bed experienced superior sleep quality relative to both those with normal phone use and those using Night Shift.
Within the six-hour group, which had the least amount of sleep, there were no differences in sleep outcomes based on whether the participants used Night Shift or not.
After that, the results suggest that it is not blue light alone that creates difficulty falling or staying asleep.
Source: https://www.technologynetworks.com/informatics/news/can-blue-light-filters-really-help-your-sleep-better-348176
In our modern world there are many routers that emit a lot of energy.
To harness under-utilized source of energy, a research team has developed a technology that uses tiny smart devices known as spin-torque oscillators (STOs) to harvest and convert wireless radio frequencies into energy to power small electronics. Using this array, the 2.4 GHz electromagnetic radio waves that WiFi uses was converted into a direct voltage signal, which was then transmitted to a capacitor(kapasitor) to light up a 1.6-volt LED. When the capacitor was charged for five seconds, it was able to light up the same LED for one minute after the wireless power was switched off.
Source: https://scitechdaily.com/engineers-harvest-energy-from-wifi-signals-to-power-small-electronics/
1. Researchers from North Carolina State University think DNA data storage has the potential to store a huge amount of data in a small package, it can store that data for a long time, and it does so in an energy-efficient way.
2. Users “name” their data files by attaching sequences of DNA called primer-binding sequences to the ends of DNA strands that are storing information. To identify and extract a given file, most systems use polymerase chain reaction (PCR). Specifically, they use a small DNA primer that matches the corresponding primer-binding sequence to identify the DNA strands containing the file you want.
3. To avoid PCR making extra copies users have to give files very distinct names to avoid getting messy data.
4. The researchers demonstrated their technique by saving four large image files in DNA data storage and retrieving thumbnails of each file, as well as the full, high-resolution files.
Source: https://www.technologynetworks.com/informatics/news/dna-data-storage-previewing-files-now-possible-349708