Generally, if scientists want to see how a living thing functions in high resolution, they need to slice it into tiny pieces first. Now, there's a powerful and bizarre new tool in researchers' arsenals. Warning: Graphic.
Tagged With imaging
This grainy black-and-white image may not look like much, but it's a record-breaker. A radar scan acquired by satellite and beamed back to Earth by laser, it allowed the European Space Agency (ESA) to identify ships off the coast of Brazil in less than 18 minutes — without any satellite ground stations nearby.
For many years scientists have been trying to find a way to measure the pressure in a patient's brain without having to drill a hole in the person's skull. Although this remains the most reliable way to measure pressure in the brain it is invasive, expensive and comes with the risk of infection and bleeding.
Diagnosis is hard. Especially when it comes to joint injuries. Doctors can make educated guesses based on your symptoms, to be really sure, they have got to look inside. While MRI is the most popular option, it's expensive, time-consuming, and not particularly accurate. That's why this new, miniaturized camera that can be stuck inside your joint is such a big deal.
Tens of thousands of photons go into making up each pixel in your standard cat photo. That's because existing cameras — even infrared night-vision ones — rely on many, many photons of light to create an image. But now physicists have photographed in almost pitch blackness, where there on average is less than one photon of light per pixel.
The quality of commercial space-based imagery is about to take a quantum leap forward with yesterday's successful launch of the Worldview-3 satellite. It's powerful enough to count chickens from orbit. It's a true monster machine.
In mid-June, the U.S. government relaxed its previously strict rules on high-definition satellite imaging, allowing mapping services like Google Maps to scale up to a higher resolution. DigitalGlobe led the charge in changing the U.S. ruling in part because of its upcoming Worldview-3 satellite, which will provide the first public high-resolution photos of our planet.
The stronger an MRI machine's magnetic field is, the better image resolution and refresh rates it is able to achieve. While most medical-grade MRIs today top out between 1.5 and 3 Tesla, the unit measure of magnetic field strength, GE has recently constructed a unit with the whopping power of 7 Tesla. But that's nothing compared to the power of the INUMAC.
To learn how the whole brain works, it doesn't do to just record from one neuron — you want to know what every single neuron is doing every millisecond. Now scientists have invented a technique that can actually capture the 3D activity of an entire brain milliseconds at the time — possibly the most complete picture of brain activity we've ever had.
Imagine creating a 3D digital archive of 500 of the world's most at-risk heritage sites, preserved in virtual reality so that future generations can explore them in detail for centuries to come. That's exactly what the CyArk 500 Challenge hopes to achieve — and it's set itself the ambitious target of doing it in just five years.