Archive for the ‘science’ category: Page 9

Apr 15, 2020

Extreme closeup of mouse-brain slice wins top Life Science Microscopy prize

Posted by in categories: neuroscience, science

The 2019 Olympus Global Image of the Year honorees find beauty under the microscope.

Apr 11, 2020

Chinese Launched Satellite Seen Crashing Back to Earth Over Guam, USA

Posted by in categories: astronomy, satellites, science, space, space travel

From the US territory Guam, sightings came in of a fireball falling from the sky. The strategic location of Guam and the U.S. military stationed there has drawn attention for years. Guam thrust into the limelight during heightened tensions with North Korea. In August 2017, North Korea launched missiles that flew over Japan and into the northern Pacific Ocean in an apparent attempt to threaten the US territory of Guam. North Korean leader Kim Jong Un did not follow up on his threats, but a fireball came crashing down from a different source.

Local officials quickly released an announcement indicating the Chinese Long March Launch as a likely source of the fireball. Indeed, an Indonesia satellite launched on a Chinese rocket came crashing back to Earth. The satellite failed to reach orbit. The failure of the new communications satellite for Indonesia to reach orbit marked the second failure for china’s space agency in less than a month, state media reported April 9.

It is unlike the Chinese Long March 3, workhorse of the Chinese launch industry, series rocket to fall. According to the Xinhua News Agency, the rocket lifted off at 7:46 p.m local time from China’s Xichang Satellite Launch Center in the Sichuan province. The rocket traveled according to plan during the first and second stages. The Rocket third stage experienced abnormal conditions.

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Apr 10, 2020

BepiColombo Slingshots Past Earth

Posted by in categories: astronomy, science, space, space travel
Mercury has only been visited by two spacecraft so far… Credit NASA

The ESA probe BepiColombo flew past Earth on the way to Mercury. The probe launched in 2018 and made the last visit of our home before continuing onward to the final destination. The spacecraft needs to shed velocity to arrive at Mercury in 2025 at a velocity to enter orbit. The spacecraft will make multiple additional planetary flybys of Venus and Mercury to slow down to enter orbit.

In space travel, mission planners need to balance mission resources. The amount of fuel required to either speed up or slow down a spacecraft greatly impacts the cost of the mission. Using a longer flight path can reduce the propellent requirements for a mission but the mission will take longer. Gravity assists can, therefore, allow a spacecraft to be launched on a cheaper, less powerful rocket.

Gravity assist flyby?

A Gravity assist flyby has other names including a gravitational slingshot, gravity assist maneuver, or swing-by. Gravity assistance maneuvers increase or decrease its speed or redirect the orbital path. The spacecraft slingshots around another object with a gravitational field and transfers some of the energy during that slingshot. In the case of BepiColombo, the spacecraft needs to slow down to be captured by Mercury…

Apr 10, 2020

The future is nano, and it will revolutionise medical science Essays

Posted by in categories: bioengineering, biotech/medical, computing, nanotechnology, science

If you’ve been interested in nanotech, but have been too afraid to ask, here is an introductory and interesting article that I’d like to recommend.

My interest in nanotech is based on my hope that nanotech can lead to methods of constructing substrates that are suitable for mind uploading. It may lead to a technique to create duplicate minds.

“These ‘biological engineering’ technologies have made real one of the dreams of the nanotechnology pioneers: the deployment of molecular assemblers able to construct any shape with atomic precision, following a rational design.”

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Apr 8, 2020

Dyson Creates 44 Free Engineering & Science Challenges for Kids Quarantined During COVID-19

Posted by in categories: biotech/medical, education, engineering, science

A heads up: Dyson has “created 44 engineering and science activities for children to try out while at home during the coronavirus pandemic, from making a balloon-powered car to building a bridge from spaghetti,” writes the Dezeen website. They go on to add: “Comprised of 22 science tasks and 22 engineering activities, the Challenge Cards can be completed by children using common household items such as eggs, string and balloons.” You can also find a related playlist of videos on YouTube, one of which appears above.

This engineering/science activities have been added to our refreshed collection, 200 Free Kids Educational Resources: Video Lessons, Apps, Books, Websites & More. If you know of any great K-12 resources, especially ones that are always free, please add them in the comments below, and we will try to add them to the list.

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Apr 8, 2020

How Astronomy’s Largest Telescopic Array Is Revolutionizing Planetary Science

Posted by in categories: science, space

Why the world’s most ambitious array of submillimeter antennas continues to reap astronomical dividends.

Mar 31, 2020

To Protect Ourselves From Bioweapons, We May Have to Reinvent Science Itself

Posted by in categories: biotech/medical, military, science

Getting far better at predicting what research will produce may be the only way to save the world.

Mar 30, 2020

Coronavirus Halts ESO’s Science Operations

Posted by in categories: biotech/medical, science

Despite COVID-19, ESO’s ELT still aims for 2025 ‘first light’

Mar 21, 2020

Universities urge U.S. leaders to boost science budgets

Posted by in categories: biotech/medical, science

Four organizations representing the nation’s major research institutions and medical schools today wrote to congressional leaders, urging them to increase research spending at federal science agencies by some 15%, or $13 billion, in order to prevent students and researchers in all scientific disciplines from going broke, to help closed laboratories restart once the pandemic eases, and to cover other unanticipated costs to the academic research enterprise.

Academic scientists plead for help to both conquer COVID-19 and limit its damage.

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Mar 19, 2020

Meet the Robin Hood of Science, Alexandra Elbakyan

Posted by in categories: open access, science

How one researcher created a pirate bay for science more powerful than even libraries at top universities.

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