NASA has announced that it is funding research into 3D-printedfood. Mechanical engineer Anjan Contractor recently received a $125,000 grant from NASA to build a prototype 3D printer with a goal of automating food creation.
NASA’s interest in a 3D food printer is obvious. The space agency hopes that such a system could provide astronauts food during long distance space travel, but the printer’s creator has a much loftier goal of helping to solve increasing world food shortages by cutting down on waste.
Software for the 3D food printer will be open-source, and the hardware is based on the open-source RepRap Mendel 3D printer.
The concept behind the 3D food printer involves using basic “building blocks” of food in replaceable powder cartridges. By combining each block, a wide range of foods should be able to be created by the printer. The cartridges will also have an incredible lifespan of 30 years, which is more than sufficient for long distance space travel.
Contractor will first prove that his system works on a basic level by printing chocolate, then he will begin his project in the next few weeks by attempting to print a pizza.
The printer will first print a layer of dough, which will be cooked while being printed. Then it will mix tomato powder with water and oil to print a tomato sauce. The pizza topping is to be a nondescript “protein layer”.
Now the Drones are set to deliver Newspapers , in France.
Read On:
Drone.
Drones are about to go postal in Auvergne, a province in south central France.
In collaboration with drone-maker Parrot, local postal service La Poste Group will deliver mail via quadricopter drones as early as May of this year, the group recently announced on its blog.
The group is already testing the “Parrot Air Drone Postal” service in Auvergne with a team of 20 postal workers and 20 drones. The postal workers can control the drones by an iPod Touch, iPhone, and Android devices using Parrot’s smartphone app.
Drones are becoming more commonplace these days, with thousands of hobbyists building their own and sharing their experiences on sites like DIYdrones.com. Meanwhile, companies like FedEx are anxiously waiting for the day when drones are admitted to standard U.S. air space.
Already, companies like FedEx are counting the days until drones are admitted to standard US airspace. The FAA will officially allow it starting in 2015, but the drones cannot fly higher than 400 feet above the ground and must be at least five miles away from any airport.
FedEx wants to be able to use drones to transport packages, rather than having to rely on passenger planes. That’s because passenger planes need to be pressurized, which is expensive, and they also can’t fly in formation, which is much more efficient.
If one studies the definition carefully, we would know this statement of Physics commits the fallacy of ad infinitum.
Any position for this reference should be preceded by a previous position,which means that we never have a fixed frame of reference ans s a result ,Motion, as we understand now, is not Absolute.
Corollary to this fact is that Motion can or may be out there where different scales are applicable.
Please read my posts on ‘Time’ and’ Existence of other Universes”
‘In physics, motion is a change in position of an object with respect to time and its reference point. Motion is typically described in terms of velocity, acceleration, displacement, and time.[1]Motion is observed by attaching a frame of reference to a body and measuring its change in position relative to another reference frame.
A body which does not move is said to be at rest, motionless, immobile, stationary, or to have constant (time-invariant) position. An object’s motion cannot change unless it is acted upon by aforce, as described by Newton’s first law. An object’s momentum is directly related to the object’s mass and velocity, and the total momentum of all objects in a closed system (one not affected by external forces) does not change with time, as described by the law of conservation of momentum.
As there is no absolute frame of reference, absolute motion cannot be determined.[2] Thus, everything in the universe can be considered to be moving.(Wiki)
Now Scientists have caught Invisible Motion on Video.
Invisible Motion.
A 30-second video of a newborn baby shows the infant silently snoozing in its crib, his breathing barely perceptible. But when the video is run through an algorithm that can amplify both movement and color, the baby’s face blinks crimson with each tiny heartbeat.
The team originally developed the program to monitor neonatal babies without making physical contact. But they quickly learned that the algorithm can be applied to other videos to reveal changes imperceptible to the naked eye. Prof. William T. Freeman, a leader on the team, imagines its use in search and rescue, so that rescuers could tell from a distance if someone trapped on a ledge, say, is still breathing.
As part of the first demonstration of laser communication with a satellite at the moon, scientists with NASA’s Lunar Reconnaissance Orbiter (LRO) beamed an image of the Mona Lisa to the spacecraft from Earth.
The iconic image traveled nearly 240,000 miles in digital form from the Next Generation Satellite Laser Ranging (NGSLR) station at NASA’s Goddard Space Flight Center in Greenbelt, Md., to the Lunar Orbiter Laser Altimeter (LOLA) instrument on the spacecraft. By transmitting the image piggyback on laser pulses that are routinely sent to track LOLA’s position, the team achieved simultaneous laser communication and tracking.
To clean up transmission errors introduced by Earth’s atmosphere (left), Goddard scientists applied Reed-Solomon error correction (right), which is commonly used in CDs and DVDs. Typical errors include missing pixels (white) and false signals (black). The white stripe indicates a brief period when transmission was paused. Image courtesy: Xiaoli Sun, NASA Goddard
“This is the first time anyone has achieved one-way laser communication at planetary distances,” says LOLA’s principal investigator, David Smith of the Massachusetts Institute of Technology. “In the near future, this type of simple laser communication might serve as a backup for the radio communication that satellites use. In the more distant future, it may allow communication at higher data rates than present radio links can provide.”
Typically, satellites that go beyond Earth orbit use radio waves for tracking and communication. LRO is the only satellite in orbit around a body other than Earth to be tracked by laser as well.
“Because LRO is already set up to receive laser signals through the LOLA instrument, we had a unique opportunity to demonstrate one-way laser communication with a distant satellite,” says Xiaoli Sun, a LOLA scientist at NASA Goddard and lead author of the Optics Express paper, posted online today, that describes the work.
Precise timing was the key to transmitting the image. Sun and colleagues divided the Mona Lisa image into an array of 152 pixels by 200 pixels. Every pixel was converted into a shade of gray, represented by a number between zero and 4,095. Each pixel was transmitted by a laser pulse, with the pulse being fired in one of 4,096 possible time slots during a brief time window allotted for laser tracking. The complete image was transmitted at a data rate of about 300 bits per second.
The laser pulses were received by LRO’s LOLA instrument, which reconstructed the image based on the arrival times of the laser pulses from Earth. This was accomplished without interfering with LOLA’s primary task of mapping the moon’s elevation and terrain and NGSLR’s primary task of tracking LRO.
The success of the laser transmission was verified by returning the image to Earth using the spacecraft’s radio telemetry system.
Turbulence in Earth’s atmosphere introduced transmission errors even when the sky was clear. To overcome these effects, Sun and colleagues employed Reed-Solomon coding, which is the same type of error-correction code commonly used in CDs and DVDs. The experiments also provided statistics on the signal fluctuations due to Earth’s atmosphere.
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