3D Printing Lunar Soil π
Researchers have developed a way to 3D print lunar soil.
This can help avoid the cost of shipping building materials & other supplies to a lunar colony.
Using the material that is already there to build things like habitats & landing pads.
Part 1:
Here are some photographs I took of the @SpaceX astronaut π§βπ suit.
The SpaceX space suit has become iconic for its sleek, futuristic design.
Initially introduced for the Crew Dragon spacecraft, it marks a significant shift from traditional NASA spacesuits, focusing on both aesthetics and functionality.
Astronauts can put on the suit independently in less than 10 minutes, a significant improvement over previous models that required assistance.
SpaceX developed an Extravehicular Activity (EVA) version of the suit for the Polaris Dawn mission, enhancing mobility and adding features like a heads-up display (HUD) and camera for monitoring suit metrics.
Key components like the helmet are 3D-printed using advanced polymers. This allows for precise customization and material use.
The outer layer of the suit uses materials like Nomex, Kevlar, and Teflon, which offer resistance to heat, abrasion, and environmental hazards.
The Stanley Cup is the ultimate prize in the National Hockey League.
If you win the cup, you get your name engraved on the trophy forever.
The Stanley Cup is primarily made out of silver and nickel alloy.
The trophy is largely made from sterling silver, which is 92.5% silver and 7.5% other metals, usually copper.
For durability, parts like the bands where names are engraved use a nickel alloy.
Here is a link to my SolidWorks model of the Stanley Cup without the names on it.
Have some fun and 3D print it.
https://t.co/uTg4w9OB4d
The construction of the Hard Rock Guitar πΈ Hotel in Hollywood, Florida, was part of a $1.5 billion expansion of the Seminole Hard Rock Hotel & Casino.
Letβs take a closer look at the iconic building and see how its lighting effects are achieved:
The guitar-shaped structure was designed by Klai Juba Wald Architecture, with the project taking nearly 10 years from conception to completion.
The building is 36 stories high, reaching 450 feet into the sky.
The unique shape required innovative construction methods, including the use of curved concrete for the guitar body and advanced engineering for the sloped columns.
The construction involved meticulous coordination due to the complexity of the shape, with over 40,000 cubic yards of concrete used.
The hotel's exterior is covered with 2.3 million LED lights, specifically 16,800 V-Sticks, which are strips of LED video fixtures. These LEDs are programmed to change color and pattern, allowing for dynamic light shows.
Different patterns and animations are constantly shown on the side of the entire building. One moment it can show the American flag πΊπΈ waving in the wind and the next it can show an animation of Frosty the Snowman. βοΈ
To mimic the strings of a guitar extending into the sky, six high-powered light beams, or "light cannons," are installed at the top of the building. These project beams up to 20,000 to 30,000 feet into the sky.
Current year for each planet, assuming they started at year 0 at the same time:
- Mercury: 8405
- Venus: 3287
- Earth: 2025
- Mars: 1077
- Jupiter: 171
- Saturn: 69
- Uranus: 25
- Neptune: 13
- Pluto: 9
Happy New Year! π₯³
The Christmas Tree Cluster!
The Christmas Tree Cluster (NGC 2264) is approximately 2,500 light-years from Earth.
It's estimated to be about 1-5 million years old.
This cluster in the constellation Monoceros has many young stars, which form a shape reminiscent of a Christmas tree when viewed with special imaging techniques.
The cluster contains around 600 stars, with many being pre-main-sequence stars (a young star that has not reached the stage where it is fusing hydrogen at its core), which are still in the process of formation!
Merry Christmas! ππ
The former orbiter access arm that was used at launchpad 39A by astronauts to board the Space Shuttle. π
Utilized by 82 shuttle crews, the arm was positioned 147 feet up over the pad.
It also served as an escape route until 7 minutes 24 seconds before launch. Then it was retracted.
Launchpad 39A is located at NASA's Kennedy Space Center in Florida.
The arm was crucial during the Space Shuttle Program, which ran from 1981 to 2011.
The arm's connection to the orbiter includes a "white room" for six people.
Here astronauts put on their helmets and parachutes for final launch preparation.
This is where they would take their last steps on Earth until they returned.
Golden Gate Bridge π main cable cross section.
The 27,572 individual steel wires that make up the main cables.
Each main cable is about 3 ft in diameter.
The Golden Gate Bridge π cost approximately $35 million to build, which would be over $600 million in today's dollars, adjusted for inflation.
Work began on January 5, 1933, and the bridge was completed on May 27, 1937. The total construction time was just over four years.
The main cables are made of 27,572 individual steel wires bundled together. Each main cable is about 3 ft in diameter.
Concrete was used extensively in the bridge's anchorage and towers.
During construction, safety nets were installed beneath the bridge, saving the lives of 19 men. These workers became known as the "Halfway to Hell Club."
Unfortunately, a total of 11 men died during construction including 10 in a single day.
The bridge can sway up to 27 feet and move up and down as much as 16 feet due to wind.
How do scientists measure the hardness of a material?!π¬π₯Όπ
Vickers Hardness Test:
A pyramid indenter made out of diamond π is forced into the surface of the material under a known load.
The tester has to be made out of diamond because it is the hardest known material.
If two materials meet, the harder material will deform the softer material.
After removing the load, the indent left by the diamond creates a square impression.
The diagonals of this square are measured with a microscope.
Hardness is calculated with these measurements.
Hardness = (1.8544ΓP) / (d^2)
P = Load
d = Average length of the two diagonals
An F1 ποΈ Race Car can theoretically drive upside down on the roof of a tunnel.
This is due to the carβs front and rear wing creating more downforce than the weight of the car.
This clip explores how Bernoulli's Principle makes the F1 car wings work.
Cartier Santos βοΈ
The Catier Santos watch was created when Brazilian aviator Alberto Santos-Dumont complained to his friend Louis Cartier that checking the time on his pocket watch while flying was inconvenient.
Louis Cartier designed a watch specifically for Santos-Dumont, which could be easily read while in the cockpit.
This led to the creation of the first menβs wristwatch, since wearing a watch on the wrist was considered feminine during that time.