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A Great Advance for Lithium Sulfur Batteries

A Great Advance for Lithium Sulfur Batteries

Science
Image credit: Monash University A research group has developed technology that can give lithium sulfur batteries four times as long. The breakthrough means that lithium sulfur is now much closer to commercialization. Compared to lithium-ion batteries, lithium-sulfur batteries have the potential to store 2-3 times as much energy per given weight. Many consider the system to be one of the most promising replacements for lithium-ion batteries. Now the Cockrell School of Engineering at the University of Texas claims to have made a big step forward in the field. The research team has found a way to stabilize one of the most challenging aspects for lithium sulfur batteries. Lithium is very reactive and has a tendency to break down surrounding substances. When charging and dischar...
How Does a Speaker Really Work?

How Does a Speaker Really Work?

Innovation, Science, Technology
How does a speaker really work? Speakers come in many different sizes and shapes. Just think of the speakers in your mobile phone, for example, and compare them to the speakers in a movie theater. Same principle, but a huge difference in performance and results. The main functionality of speakers is that they produce sound, in short, it can be said that speakers process and translate electronic signals/pulses into sound. Fixed permanent magnet in the speaker Inside the speaker, there is a permanent magnet mounted. This permanent magnet is mounted so that its position is fixed against a fixed suspension device. This fixed mounting device is in turn fixed against the outer casing of the speaker. The suspension device should be as stable and stable as possible. Speaker diaphragm and ele...
How Does a Microwave Oven Really Work?

How Does a Microwave Oven Really Work?

Innovation, Science, Technology
Almost everyone uses a microwave, and a lot of people use it daily. Perhaps to heat the lunch, or thaw the meat for tonight's dinner. The technology behind a microwave is rather interesting. How can it heat up something without essentially using heat? How does a microwave oven really work? How come the microwaves heat the food but not the plate? In this article, we will find out. Magnetic fields are created through a magnetron In the microwave, there is a technology that creates micro waves, which is a kind of electron tube (known as a magnetron. With the help of electrons, it creates a magnetic field, which in turn generates micro waves. More specifically, when the microwave is turned on, it takes electricity and converts it into high-powered radio waves. The microwave oven generates
This Place on Earth Lacks Biological Life

This Place on Earth Lacks Biological Life

Science
The existence of water does not always mean that life can occur. It is the researchers' conclusion after in vain looking for signs of life in Africa's most inhospitable place. Even the coldest, hottest and driest areas of the earth can show some form of life. However, now a team of French and Spanish researchers has determined that there is a place that completely lacks all forms of biological life. The group has studied the geothermal sources surrounding the Dallol volcano in Ethiopia, where several of the springs are spraying brine and acidic liquids. The area is 60 kilometers north of the capital Addis Ababa. Earlier this year, other researchers published a study claiming that microorganisms can survive in the diverse hostile environment - in a model that was said to be representa...