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Oct 22, 2019

Study suggests alien probes are too tiny for astronomers to spot

Posted by in categories: alien life, existential risks

Space scientists may have missed alien probes because they’re just too small.

That’s the bold claim from an astrophysicist who reckons we’ve been looking for extraterrestrial life the wrong way.

The argument is an attempt to explain the Fermi Paradox, a decades-old thought experiment.

Oct 21, 2019

What is Build-A-Cell?

Posted by in categories: bioengineering, biotech/medical

Cells are the fundamental “building blocks” that make up living organisms. Yet, we don’t know exactly how cells were formed in the first place. We also don’t know what all the molecules that make up any natural cell do. Finally, we can’t yet put molecules together ourselves to make new synthetic cells.

Addressing the questions and challenges posed above requires significant collaboration and cooperation. The Build-a-Cell community welcomes all who wish to learn about and cooperate in the work of fully understanding and engineering a diversity of synthetic cells.

The future of biotechnology is in realizing fully understood, lineage agnostic organisms, beginning with single cells.

Oct 21, 2019

Pushing quantum photonics

Posted by in categories: computing, mobile phones, quantum physics

Quantum computers use the fundamentals of quantum mechanics to potentially speed up the process of solving complex computations. Suppose you need to perform the task of searching for a specific number in a phone book. A classical computer will search each line of the phone book until it finds a match. A quantum computer could search the entire phone book at the same time by assessing each line simultaneously and return a result much faster.

Oct 21, 2019

China Reveals Wind Tunnel Tests Of Space Plane-Launching High-Speed Mothership Aircraft

Posted by in categories: space, transportation

Such a system would give China the ability to rapidly and unpredictably access space with a reusable orbiter.

Oct 21, 2019

Five science projects that could shape the future

Posted by in categories: biotech/medical, science

Researchers at Australia’s Institute for Molecular Bioscience are exploring new frontiers in healthcare and energy storage. Bec Crew reports.

Oct 21, 2019

Creepy human-like skin makes your phone ticklish and pinchable

Posted by in category: mobile phones

A smartphone case made from artificial human-like skin responds to being pinched, tickled and stroked to add an extra layer of interactivity to the device.

Oct 21, 2019

Man Uses His Heat-Seeking Drone to Find Missing Child

Posted by in category: drones

Search and Rescue

This isn’t the first time a drone has proven invaluable in a search-and-rescue operation — we’ve seen others help save stranded swimmers, earthquake victims, and lost hikers.

Continue reading “Man Uses His Heat-Seeking Drone to Find Missing Child” »

Oct 21, 2019

Asteroid horror: NASA spots space rock half size of Ben Nevis on dangerous Earth-orbit

Posted by in categories: asteroid/comet impacts, existential risks

NASA is keeping a watchful eye on the mid-November close approach of a behemoth space rock that is almost half the size of Ben Nevis and hurtling towards earth at 18,000 miles per hour.

Oct 21, 2019

Warp Speeds with NO Warp Drives

Posted by in categories: media & arts, space travel

Most species in Star Trek utilise Warp as their faster than light travel, but not all.
Some have created impressive alternatives to warp drive, such as catapults arrays and even sail ships.
This video looks at the practicality for Starfleet to adopt any of these methods of travel, their potential pros and cons.

If you liked this, maybe:
Borg Transwarp:
Coaxial Warp:

Continue reading “Warp Speeds with NO Warp Drives” »

Oct 21, 2019

World record acceleration: Zero to 7.8 billion electron volts in 8 inches

Posted by in category: particle physics

To understand the fundamental nature of our universe, scientists would like to build particle colliders that accelerate electrons and their antimatter counterparts (positrons) to extreme energies (up to tera electron volts, or TeV). With conventional technology, however, this requires a machine that is enormously big and expensive (think 20 miles (32 km) long). To shrink the size and cost of these machines, the acceleration of the particles—how much energy they gain in a given distance—must be increased.

This is where could have a dramatic impact: a wave of charged particles—a plasma wave—can provide this acceleration through its . In a laser plasma accelerator, intense laser pulses are used to create a plasma wave with electric fields that can be thousands of times stronger than those attainable in conventional accelerators.

Recently, the team at Berkeley Lab’s BELLA Center doubled the previous world record for energy produced by laser plasma accelerators, generating electron beams with energies up to 7.8 billion electron volts (GeV) in an 8-inch-long plasma (20 cm). This would require about 300 feet (91 m)using conventional technology.