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Mars Base

SpaceX's capsule arrives at ISS - 0 views

phys.org/...013-03-spacex-capsule-iss.html

scibyte84 dragon

shared by Mars Base on 03 Mar 13 - No Cached
  • 5:31 am EST (1031 GMT)
  • The capsule named Dragon was captured
  • The craft,
  • ...3 more annotations...
  • will now be inspected via cameras, brought to the Earth-facing port of the ISS's Harmony module and bolted into place by commands from mission control
  • SpaceX says it has 50 launches planned—both NASA missions and commercial flights—totaling about $4 billion in contracts
  • NASA also has a $1.9 billion resupply contract for the station with Orbital Sciences Corporation, which will launch the first test flight of its Antares rocket from a base in Virginia in the coming weeks
Mars Base

Subsystems | ESTCube - 0 views

www.estcube.eu/subsystems

scibyte86 ESTCube

shared by Mars Base on 13 Mar 13 - No Cached
  • The satellite consits of
  • ADCS - attitude determination and control system, determines and modifies satellite's alignment
  • CAM - onboard camera for taking pictures of the Earth and the unreeled tether
  • ...5 more annotations...
  • CDHS - command and data handling system, the satellite's main onboard computer
  • COM - communications system for up- and downlinks
  • EPS - electrical power system, provides electrical power for the satellite
  • PL - payload, the satellite's experiment module, that containt the tether and everything else related to the experiment
  • STR - satellite's structure
Mars Base

ESTCube-1 - Wikipedia, the free encyclopedia - 0 views

en.wikipedia.org/ESTCube-1

scibyte86 ESTCube

shared by Mars Base on 13 Mar 13 - No Cached
  • scheduled to be launched to orbit in second half of 2013
  • Student Satellite is an educational project that university and high school students can participate in
  • The CubeSat standard for nanosatellites was followed during the engineering of ESTCube-1, resulting in a 10x10x11.35 cm cube, with a volume of 1 liter and a mass of 1.048 kg.
  • ...44 more annotations...
  • According to the CubeSat standard there are three different sized CubeSats corresponding to size 1U, 2U and 3U. Base side lengths are the same but height is 2 to 3 times bigger than 1U CubeSats
  • Mass is also set in CubeSat standard, the highest possible mass for 1U CubeSat is 1300 grams, 2U CubeSat 2600 grams and 3U CubeSat 4000 grams
  • CubeSat base side length must be 100.0±0.1 millimeters and satellite height must be 113.5±0.1 mm
  • the Estonian satellite
  • a 1U CubeSat
  • Although
  • its main purpose was to educate students, the satellite does have a scientific purpose.
  • On board of the satellite is an electric solar wind sail (e-sail) which was created by a Finnish scientist Pekka Janhunen
  • it is the first real experimentation of the e-sail
  • 10 meters of e-sail 50 to 20 micrometers thick wire of high-technology structure so-called Heytether will be deployed from the satellite.
  • The deployment of the Heytether can be detected by decrease of the satellite's speed of rotation or by a on-board camera
  • To control the loaded solar wind sail elements interaction with the plasma surrounding the earth and the effect it has on the spacecraft spinning speed the spacecraft has two on-board nanotechnologic electron emitters/gun
  • The electron emitters are connected to the e-sail element and by shooting out electrons it loads the e-sail element positively to 500 volts
  • The positive ions in the plasma push the e-sail element and have an influence on the satellites rotation speed
  • The effect of the e-sail is measured by the change in rotation speed
  • The camera is used to take a picture of Earth and the successfully deployed Heytether. [edit]
  • ESTCube-1 will be sent to orbit by the European Space Agency's rocket Vega in spring of 2013
  • Start in spring of 2013
  • Half an hour after the satellites deployment from the start capsule satellites antennas will be opened and radio transmitter and important subsystems will be switched on
  • First days or weeks will be used to test the satellite and set it to work on full capacity.
  • Orienting the satellite so the on-board camera will be faced to earth
  • trying to take a picture of Estonia
  • Rotating the satellite on an axis with a speed of 1 revolution per second
  • E-sail element deployment from the satellite by a centrifugal force and confirming the deployment via the on-board camera
  • Activating the electron emitter and loading the e-sail
  • Measuring the e-sails and Lorentz force by satellites revolutions per second
  • If possible using the negatively charged e-sail to take the satellite off orbit and burn it in the earths atmosphere
  • If everything goes perfect the mission can be completed within a few weeks to a month
  • Lifespan of the satellite
  • Measurements and weight
  • Scientific purpose
  • Communicating with the satellite
  • held by two International Amateur Radio Unions three registered frequencies
  • Periodic but very slow communication is done on a telegraphic signal on a frequency of 437.250 MHz
  • the most important satellite parameters are transmitted every 3 to 5 minutes
  • For fast connections FSK-modulation radio signal on a frequency of 437.505 MHz with a 9600 baud connection speed and AX.25 standard is used.
  • Somewhat slow connection speed is caused by the usage of amateur radio frequencies which allow a maximum of 25 kiloherz bandwidth
  • Fast connection is used only when the satellite has been given a specific
  • Using the GFSK-modulation maximum possible connection speed is 19,200 bits per second
  • Software
  • FreeRTOS on the satellite's Command and Data Handling System and camera module
  • TinyOS on the satellite's communication module
  • Financing and costs
  • Cheapest possibility to send a satellite onto orbit is offered by European Space Agency. Because Estonia is an associated member of ESA most of the launch expenses (about 70,000 euros) will be covered from Estonian member fee for educational expenses. With the launch total expenses for the project are approximately 100,000 euros.
Mars Base

Mars Rover Breaks U.S. Record for Off-Planet Driving: Scientific American - 0 views

www.scientificamerican.com/article.cfm

scibyte94 opportunity

shared by Mars Base on 18 May 13 - No Cached
  •  Opportunity rover drove 263 feet (80 meters) on
  • (May 15), bringing its total odometry on the Red Planet to 22.220 miles (35.760 kilometers
  • Opportunity still trails another robot for the international distance record
  • ...7 more annotations...
  • The Soviet Union's remote-controlled Lunokhod 2 rover traveled 23 miles (37 km) on the moon in 1973.
  • golf-cart-size Opportunity
  • landed on Mars in January 2004 on three-month missions to search for signs of past water activity on the Red Planet
  • Spirit stopped communicating with Earth in 2010 and was declared dead a year later
  • Opportunity had been working at a section of the rim dubbed "Cape York" since the middle of 2011
  • this week it began trekking toward an area called Solander Point, which lies 1.4 miles (2.2 km) away
  • Opportunity's handlers have said they'd like to add this milestone to the rover's resume, though science remains the mission's top priority
Mars Base

Kepler Planet-Hunting Mission in Jeopardy - 0 views

www.universetoday.com/...net-hunting-mission-in-jepardy

scibyte94 Kepler

shared by Mars Base on 16 May 13 - No Cached
  • NASA’s Kepler telescope has lost its ability to precisely point toward stars
  • One of the reaction wheels –devices which enable the spacecraft to aim in different directions without firing thrusters – has failed
  • last year reaction wheel #2 failed, and now #4 has failed
  • ...20 more annotations...
  • Kepler
  • needs at least three reaction wheels to be able to point precisely enough to hunt for planets orbiting distant stars
  • that doesn’t require such precise pointing abilities
  • Last year, NASA had approved an extended mission for Kepler through 2016
  • Initially, they did see some movement on the wheel
  • but it quickly went back
  • have a few things to try
  • get wheel #4 working again
  • they are currently using thrusters to stabilize the spacecraft, and in its current mode, the onboard fuel will last for several months
  • a “Point Rest State,”
  • would extend the fuel to last a period of several years
  • where we can park the vehicle
  • Point Rest State is a loosely-pointed, thruster-controlled state that minimizes fuels usage while providing a continuous X-band communication downlink
  • software to execute that state was loaded to the spacecraft last week
  • the team completed the upload of the parameters the software will use
  • there is the possibility of the wheel running in the opposite direction, but running the wheel backward would mean they would need to use more thruster fuel
  • reaction wheels try to balance the forces from the solar pressure, that’s what forces a wheel to run
  • Earlier this year, elevated friction was detected in reaction wheel #4
  • even if the Kepler spacecraft is unable to make more observations, there are still terabytes of data to pore over
  • have two years of data that has yet to be searched through
Mars Base

Emergency Spacewalk Likely for 'Serious' ISS Coolant Leak - 0 views

www.universetoday.com/...y-for-serious-iss-coolant-leak

scibyte94 iss ViewerFeedback

shared by Mars Base on 19 May 13 - No Cached
  • while the coolant is vital to the operation of the ISS for the electricity-supplying systems, the crew is not in any danger
  • The ammonia cools the 2B power channel, one of eight power channels that control the all the various power-using systems at the ISS
  • All the systems that use power from the 2B channel, the problem area, are being transferred throughout the day to another channel
  • ...2 more annotations...
  • The 2B channel will eventually shut down when the coolant is depleted, and the power is being diverted in order to keep everything up and running on the station
  • While Cassidy and Marshburn prepare in space, Astronauts at NASA’s Johnson Space Center are using the Neutral Buoyancy lab – a 12- meter (40 ft.) deep swimming pool with mockups of the space station that simulates the zero-gravity conditions in space – going through the entire expected EVA
Mars Base

Conductive paint lands in pens and pots for creatives - 0 views

phys.org/...13-05-pens-pots-creatives.html

scibyte96

shared by Mars Base on 28 May 13 - No Cached
  • The substance allows the painting of "liquid wiring" on any surface. Except for skin
  • Nontoxic and drying at room temperature, the product has caught on with educators, DIY makers and inventors
  • Radio Shack stocks their paint pen
  • ...8 more annotations...
  • they hope to appeal to a wide creative gamut of hobbyists, artists, and engineers for innovative ways to use their products
  • are Paint, they emphasized, is the first non-toxic electrically conductive paint available
  • the substance is child friendly, which opens the door to educational projects, including toys, and touch-sensitive paper drawings that play sounds
  • According to the company, Bare Paint has a surface resistivity of approximately 55 ohms/square at 50 microns layer thickness
  • The product is water-based but it is not waterproof
  • generally split applications into two simple classifications, signaling and powering
  • Signaling could include using the Paint as a potentiometer while interfacing with a micro-controller, as a conduit in a larger circuit or as a capacitive sensor
  • Powering a device would include lighting LED's or driving small speakers
Mars Base

First drug to improve heart failure mortality in over a decade - 0 views

medicalxpress.com/...-failure-mortality-decade.html

scibyte96 scibyte97 heart

shared by Mars Base on 01 Jun 13 - No Cached
  • Coenzyme Q10 decreases all cause mortality by half
  • results of a multicentre randomised double blind trial
  • It is the first drug to improve heart failure mortality in over a decade
  • ...22 more annotations...
  • Coenzyme Q10 (CoQ10) occurs naturally in the body and is essential to survival
  • CoQ10 works as an electron carrier in the mitochondria, the powerhouse of the cells, to produce energy and is also a powerful antioxidant
  • CoQ10 levels are decreased in the heart muscle of patients with heart failure, with the deficiency becoming more pronounced as heart failure severity worsens
  • Double blind controlled trials have shown that CoQ10 improves symptoms, functional capacity and quality of life in patients with heart failure with no side effects
  • until now, no trials have been statistically powered to address effects on survival
  • study randomised 420 patients with severe heart failure
  • to CoQ10 or placebo and followed them for 2 years
  • primary endpoint was time to first major adverse cardiovascular event (MACE)
  • unplanned hospitalisation due to worsening of heart failure, cardiovascular death, urgent cardiac transplantation and mechanical circulatory support
  • CoQ10 halved the risk of MACE
  • 29 (14%) patients in the CoQ10 group reaching the primary endpoint compared to 55 (25%) patients in the placebo group
  • CoQ10 also halved the risk of dying from all causes, which occurred in 18 (9%) patients in the CoQ10 group compared to 36 (17%) patients in the placebo group
  • CoQ10 treated patients had significantly lower cardiovascular mortality
  • and lower occurrence of hospitalisations for heart failure
  • There were fewer adverse events in the CoQ10 group compared to the placebo group
  • CoQ10 is the first medication to improve survival in chronic heart failure since ACE inhibitors and beta blockers more than a decade ago
  • Other heart failure medications block rather than enhance cellular processes and may have side effects
  • CoQ10
  • is a natural and safe substance, corrects a deficiency in the body and blocks the vicious metabolic cycle in chronic heart failure called the energy starved heart
  • CoQ10 is present in food, including red meat, plants and fish, but levels are insufficient to impact on heart failure
  • CoQ10 is also sold over the counter as a food supplement but
  • Food supplements can influence the effect of other medications including anticoagulants and patients should seek advice from their doctor before taking them
Mars Base

Mars Rover Opportunity Nears Nebulous Off-Planet Driving Record | Space.com - 0 views

www.space.com/pportunity-driving-record.html

scibyte97 scibyte98 opportunity

shared by Mars Base on 08 Jun 13 - No Cached
  • The all-time mark is held by the Soviet Union's remote-controlled Lunokhod 2 rover, which traveled about 23 miles (37 kilometers) on the moon back in 1973
  • Opportunity
  • racked up 22.75 miles (36.61 km) on Mars
  • ...6 more annotations...
  • it's unclear
  • the old moon rover's mark is imprecise
  • 37 kilometers is highly uncertain
  • Scientists now have high-quality images of the moon taken by spacecraft such as NASA's Lunar Reconnaissance Orbiter, and some of these photos even show Lunokhod 2's tracks
  • researchers could nail down the longstanding off-planet driving record if they wanted to
  • But he and his fellow Opportunity team members have no plans to do this work themselves
Mars Base

'Walking robot' allows paralyzed man to move again | Fox News - 0 views

www.foxnews.com/...ws-paralyzed-man-to-move-again

scibyte77

shared by Mars Base on 28 Dec 12 - No Cached
  • Developed by the military to allow soldiers to carry heavy weights long distances, then adapted to use with paralyzed patients, this real life "Iron Man" uses two lithium batteries, motors, computer chips and a hand-operated console.
  • available at 30 hospitals around the country so far
  • Researchers at Vanderbilt University have developed the lightest model, under 30 pounds, and expect the uses and benefits of the exoskeleton to extend to patients with stroke and many other neurological conditions.
  • ...9 more annotations...
  • I began to sleep better at night
  • spasms are decreased
  • better bladder control
  • the exoskeleton is good for the skin, muscles, bones, circulation, and it decreases the risk of blood clots and wounds
  • In the absence of a cure
  • using technological devices to help them to gain mobility and to be able to better care for themselves
  • this electrically powered robot where they actually can go distances without exhausting themselves
  • one downside, and that's the cost, which is up to $140,000 for a single unit
  • as more and more patients use it and the technology is simplified, the cost is expected to come down.
Mars Base

Tiny Sponge Soaks Up Venom in Blood: Scientific American - 0 views

www.scientificamerican.com/article.cfm

scibyte92 MedicalTreatment

shared by Mars Base on 27 Apr 13 - No Cached
  • A tiny sponge camouflaged as a red blood cell could soak up toxins ranging from anthrax to snake venom, new research suggests
  • The new "nanosponge,"
  • The nanoparticles, also called nanosponges, act as decoys that lure and inactivate the deadly compounds
  • ...17 more annotations...
  • When injected into mice, the tiny decoys protect mice against lethal doses of a toxin produced by methicillin-resistant Staphylococcus aureus, or MRSA.
  • Follow-up studies need to be done in humans
  • One of the mainstay strategies of bacteria and poison is to poke holes in cells, disrupting their internal chemical balance and causing them to burst
  • far, researchers haven't had much success creating all-purpose treatments to exploit this vulnerability
  • researchers created a tiny spherical core of a lactic acid byproduct, which forms naturally during metabolism in the human body
  • They then wrapped the cores in the outer surface of red blood cells. (To get the outer skin of red blood cells, they used a difference in particle concentration inside and outside the cells to cause them to burst, and then collected their outer membranes
  • The entire ensemble became a tiny nanosponge, which was about 85 nanometers in diameter, or 100 times smaller than a human hair
  • In cell cultures, the camouflaged sponges act as decoys, luring the toxins from
  • the bacteria that causes strep throat) and bee venom
  • then binding to the structure the "poisons" normally use to poke through cells
  • When they stick onto the nanosponge, that particular damaging structure gets preoccupied, and then the body can digest the entire particle
  • the team injected 18 mice with a lethal dose of a MRSA toxin. Half the mice then got a dose of the nanosponges
  • Whereas all the mice in the control group died, all but one that received the treatment survived
  • Because so many bacteria use the same pore-forming strategy, the nanosponges could be used as a universal treatment option when doctors don't know exactly what is causing an illness
  • The sponges' tiny size means a small amount of blood, for camouflage, can be used to make an effective dose
  • also allows them to circulate freely through blood vessels, lure enough of the toxins to have an impact and still be degraded safely
  • the researchers want to see whether the method works in human blood, and against other toxic chemicals, such as scorpion venom and anthrax, which use similar attack strategies
Mars Base

IBM researchers make world's smallest movie using atoms (w/ video) - 0 views

phys.org/...orld-smallest-movie-atoms.html

scibyte92 scibyte93

shared by Mars Base on 02 May 13 - No Cached
  • Scientists from IBM
  • unveiled the world's smallest movie, made with one of the tiniest elements in the universe: atoms
  • Named "A Boy and His Atom," the Guinness World Records -verified movie used thousands of precisely placed atoms to create nearly 250 frames of stop-motion action.
  • ...11 more annotations...
  • This movie is a fun way to share the atomic-scale world while opening up a dialogue with students and others on the new frontiers of math and science
  • In order to make the movie, the atoms were moved with an IBM-invented scanning tunneling microscope
  • weighs two tons, operates at a temperature of negative 268 degrees Celsius and magnifies the atomic surface over 100 million times
  • IBM Research lab one of the few places in the world where atoms can be moved with such precision.
  • Remotely operated on a standard computer, IBM researchers used the microscope to control a super-sharp needle along a copper surface to "feel" atoms
  • Only 1 nanometer away from the surface, which is a billionth of a meter in distance, the needle can physically attract atoms and molecules on the surface and thus pull them to a precisely specified location on the surface
  • moving atom makes a unique sound that is critical feedback in determining how many positions it's actually moved
  • scientists rendered still images of the individually arranged atoms, resulting in 242 single frames
  • the same team of IBM researchers who made this movie also recently created the world's smallest magnetic bit. They were the first to answer the question of how many atoms it takes to reliably store one bit of magnetic information: 12.
  • it takes roughly 1 million atoms to store a bit of data on a modern computer or electronic device
  • atomic memory could one day store all of the movies ever made in a device the size of a fingernail.
Mars Base

Mars Rover Opportunity Back in Action After Glitch | Mars Solar Conjunction | Space.com - 0 views

www.space.com/-rover-exits-standby-mode.html

scibyte92 opportunity

shared by Mars Base on 02 May 13 - No Cached
  • Mars rover Opportunity has overcome a glitch that put the robot into standby mode late last month
  • ortunity apparently put itself into standby automode — in which it maintains power balance but waits for instructions from the ground — on April 22, after sensing a problem during a routine camera check, mission officials said.
  • rover's handlers didn't notice the problem until April 27, when Opportunity got back in touch after a nearly three-week communications moratorium
  • ...1 more annotation...
  • Opportunity's controllers prepared a new set of commands on April 29 designed to get things back to normal, and the fix has apparently worked
Mars Base

Scientists study rare dinosaur skin fossil to determine skin colour for first time - 0 views

phys.org/...rare-dinosaur-skin-fossil.html

shared by Mars Base on 04 May 13 - No Cached
  • this is only the third three-dimensional dinosaur skin specimen ever found worldwide
  • One of the only well preserved dinosaur skin samples ever found is being tested at the Canadian Light Source (CLS) synchrotron to determine skin colour and to explain why the fossilized specimen remained intact after 70-million years.
  • the hadrosaur, a duck-billed dinosaur from the Late Cretaceous period (100-65 million years ago), was found close to a river bed near Grande Prairie, Alberta.
  • ...8 more annotations...
  • One question is whether the hadrosaur skin was green or grey, like most dinosaurs are portrayed, or was it a completely different colour
  • the CLS to look at unique structures called melanosomes, cellular organelles the contain pigments that control the color of an animal's skin.
  • "If we are able to observe the melanosomes and their shape, it will be the first time pigments have been identified in the skin of a dinosaur
  • There has been research that proved the colour of some dinosaur feathers, but never skin
  • Using light at the CLS mid-infrared (Mid-IR) beamline, Barbi and CLS scientists are also looking for traces of organic and inorganic elements that could help determine the hadrosaur's diet and why the skin sample was preserved almost intact
  • the sample is placed in the path of the infrared beam and light reflects off of it.
  • , chemical bonds of certain compounds will create different vibrations
  • For example, proteins, sugars and fats still found in the skin will create unique vibrational frequencies that scientists can measure
Mars Base

Mars Science Laboratory: Curiosity Maneuver Prepares for Drilling - 0 views

mars.jpl.nasa.gov/...index.cfm

scibyte70 Curiosity

shared by Mars Base on 01 Feb 13 - No Cached
  • placed its drill onto a series of four locations on a Martian rock and pressed down on it with the rover's arm, in preparation for using the drill in coming days.
  • carried out this "pre-load" testing on Mars
  • (Jan. 27
  • ...15 more annotations...
  • ctions for what would result from the commanded motions.
  • next step is an overnight pre-load test, to gain assurance that the large temperature change from day to night at the rover's location does not add excessively to stress on the arm while it is pressing on the drill
  • air temperature plunges from about 32 degrees Fahrenheit (zero degrees Celsius) in the afternoon to minus 85 degrees Fahrenheit (minus 65 degrees Celsius) overnight
  • Over this temperature swing, this large rover's arm, chassis and mobility system grow and shrink by about a tenth of an inch (about 2.4 millimeters), a little more than the thickness of a U.S. quarter-dollar coin
  • Remaining preparatory steps will take at least the rest of this week
  • Some of these steps are hardware checks. Others will evaluate characteristics of the rock material at the selected drilling site on a patch of flat, veined rock called "John Klein
  • We are proceeding with caution in the approach to Curiosity's first drilling. This is challenging. It will be the first time any robot has drilled into a rock to collect a sample on Mar
  • "drill-on-rock checkout" will use the hammering action of Curiosity's drill briefly, without rotation of the drill bit, for assurance that the back-and-forth percussion mechanism and associated control system are properly tuned for hitting a rock
  • the surface of the rock while penetrating less than eight-tenths of an inch (2 centimeters).
  • "mini-drill" is designed to produce a small ring of tailings -- powder resulting from drilling
  • will not go deep enough to push rock powder into the drill's sample-gathering chamber
  • The rover team's activities this week are affected by the difference between Mars time and Earth time
  • To compensate for this, the team develops commands based on rover activities from two sols earlier
  • the mini-drill activity cannot occur sooner than two sols after the drill-on-rock checkout.
  • Martian sol lasts about 40 minutes longer than a 24-hour Earth day.
Mars Base

NASA's Planet-Hunting Kepler Spacecraft Recovering from Glitch | Space.com - 0 views

www.space.com/-kepler-spacecraft-glitch.html

scibyte80 Kepler

shared by Mars Base on 30 Jan 13 - No Cached
  • NASA's Kepler space telescope has resumed its search for alien planets after resting for 10 days to work out kinks in its attitude control system, mission officials announced
  • Jan. 29
  • Kepler went into a protective "safe mode" on Jan. 17 after engineers detected elevated friction levels in one of its reaction wheels
  • ...8 more annotations...
  • Engineers spun the wheels down to zero speed, hoping the break would redistribute lubricant and bring the friction back down to normal
  • That phase is now over and Kepler is back in action, though it will take time to determine if the problem is solved
  • "During the 10-day resting safe mode, daily health and status checks with the spacecraft using NASA's Deep Space Network were normal."
  • When Kepler launched in March 2009, it had four reaction wheels — three for immediate use, and one spare
  • one wheel (known as number two) failed in July 2012, so a major problem with the currently glitchy wheel (called number four) could spell the end of the $600 million Kepler mission.
  • Over the next month, the engineering team will review the performance of reaction wheel #4 before, during and after the safe mode to determine the efficacy of the rest operation
  • The wheel has acted up before without causing serious problems
  • with a variety of friction signatures, none of which look like reaction wheel #2, and all of which disappeared on their own after a time
Mars Base

Dennis Tito Wants to Send Human Mission to Mars in 2018 - 0 views

www.universetoday.com/...-human-mission-to-mars-in-2018

scibyte83 mars

shared by Mars Base on 21 Feb 13 - No Cached
  • Dennis Tito — the first-ever space tourist — is planning send a human mission to Mars in January 2018 on a round-trip journey lasting 501 days
  • Reportedly, Tito has created a new nonprofit company called the Inspiration Mars Foundation to facilitate the mission
  • Tito, along with several other notable people from the space community will provide more information in a press conference set for Wednesday, February 27th
  • ...10 more annotations...
  • paper Tito plans to present at the IEEE Aerospace Conference in March, which discusses
  • a crewed free-return Mars mission that would fly by Mars
  • no going into orbit or landing
  • Such a 501-day mission would launch in January 2018, “using a modified SpaceX Dragon spacecraft launched on a Falcon Heavy rocket,”
  • existing environmental control and life support system (ECLSS) technologies would allow such a spacecraft to support two people for the mission,
  • Crew comfort is limited to survival needs only.
  • sponge baths are acceptable, with no need for showers
  • the paper outlines how NASA would also have a role in this mission in terms of supporting key life support and thermal protection systems, even though this is a private-sector effort
  • No estimates of what such a mission would cost are included in the paper, but it does say it would be financed privately
  • The paper adds that if they miss this favorable 2018 opportunity, the next chance to take advantage of this lower energy trajectory would be in 2031.
Mars Base

Dental surgeon adds music to drill to appease patients - 0 views

medicalxpress.com/...rgeon-music-drill-appease.html

scibyte67 dentist

shared by Mars Base on 11 Oct 12 - No Cached
  • a dental surgeon in the Indonesian city of Purworejo has
  • connected an MP3 player to a dental drill that plays music loud enough to drown out the distinctive whine of the instrument
  • he discovered that many patients, especially children were not afraid of the dentist; instead, they were afraid of the drill
  • ...9 more annotations...
  • connecting the drill with the music player
  • , patients are able to control its volume by opening and closing their mouths
  • e wider they open, the louder the music grows which means the dentist doesn't have to continually urge patients to open wider for better access to back teeth
  • he invested 6 million rupiah (approximately $595)
  • mainly for the benefit of frightened children
  • using it in his practice since 2006 and has noted that many adults also prefer the musical drill to the standard model.
  • Patients can make requests he says, though he does try to limit the choices to songs that calm the nerves
  • t it took a year of research and effort to configure the drill
  • Doctor Gustiana presented his modified drill to attendees at the International Dental Congress held in Greece earlier this year.
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