Tuesday, January 2, 2024

Space X - Starship


 

Height: 121m / 397ft

Diameter: 9m / 29.5ft

Payload Capacity: 100-150tons

 SpaceX’s Starship spacecraft and Super Heavy rocket – collectively referred to as Starship – represent a fully reusable transportation system designed to carry both crew and cargo to Earth orbit, the Moon, Mars and beyond. Starship is the world’s most powerful launch vehicle ever developed, capable of carrying up to 150 metric tonnes fully reusable and 250 metric tonnes expendable.

 

 STARSHIP



 Height: 50m / 165ft

Diameter: 9m / 29.5ft

Propellant Capacity 1200tons / 2.6Mlb

Thrust: 1500tf / 3.3Mlb

Payload capacity: 100-150tons

Starship is the fully reusable spacecraft and second stage of the Starship system. The vehicle comes in several different configurations, offers an integrated payload section and is capable of carrying crew and cargo to Earth orbit, the Moon, Mars and beyond. Starship is also capable of point-to-point transport on Earth, enabling travel to anywhere in the world in one hour or less.

 

 SUPER HEAVY BOOSTER

 
 

HEIGHT: 71 m / 232 ft

DIAMETER: 9 m / 29.5 ft

PROPELLANT CAPACITY: 3,400 t / 7.5 Mlb

THRUST: 7,590 tf / 16.7 Mlbf

 

Super Heavy is the first stage, or booster, of the Starship launch system. Powered by 33 Raptor engines using sub-cooled liquid methane (CH4) and liquid oxygen (LOX), Super Heavy is fully reusable and will re-enter Earth’s atmosphere to land back at the launch site.

 

RAPTOR ENGINES

 


 

DIAMETER: 1.3 m / 4.2 ft

HEIGHT: 3.1 m / 10.2 ft

THRUST: 230 tf / 507 klbf

The Raptor engine is a reusable methane-oxygen staged-combustion engine that powers the Starship system and has twice the thrust of the Falcon 9 Merlin engine. Starship will be powered by six engines, three Raptor engines, and three Raptor Vacuum (RVac) engines, which are designed for use in the vacuum of space. Super Heavy will be powered by 33 Raptor engines, with 13 in the center and the remaining 20 around the perimeter of the booster’s aft end.

 

 Source: https://www.spacex.com/


 

Wednesday, February 22, 2023

Sri Lankan Peacocks

The magnificent peacock is a bird native to the island of Sri Lanka, with their distinctive calls being heard all over the jungles. For such colorful creatures, they are surprisingly shy by nature, hence the best place to find one is within the boundaries of the numerous national parks, hiding from the daily hustle bustle of Sri Lankan life.

Being the largest of the pheasants, the peacock is a native bird to both Sri Lanka and India. Most often, the ones that you see on photographs with the beautiful plumage are the male peacocks – after which the simile ‘proud as a peacock’ was formed! The female pea hen does not have the lovely ornamental feathers and bright colors. Pea fowl are quite readily tamed and can sometimes be seen in the lawns of hotels or within the garden of large private residences in Sri Lanka.

While on a safari at the Yala National Park, peacocks are a common sight. They could be displaying its fan of feathers or perched up and camouflaged at the top of trees. Peafowl – which is the actual term for peacocks and peahens together, have an average life span of 20 years when living in the wild. In Sri Lanka, they can be found in the jungles of Eastern, Northern and Southern provinces. If driving through the Hambantota district in Southern Sri Lanka, you can see them strolling on the streets as well.

The best time to observe peacocks is in the early morning when males gather around females, shouting loudly and stretching out their lovely feathers to create a beautiful dance. This is how they attracts the females, and it is indeed one of the most gorgeous observations of Mother Nature.

So why is it that the male has such an amazing fan of feathers? Well, most obviously, to attract the ladies when in courtship display. The peacock with the biggest and best fan is normally awarded the girl! Most often, successful males are capable of controlling a group of peahens. The females can lay about3-5 eggs and are ground feeders – eat insects, seed, vegetable matter and other small creatures.

Hindus in Sri Lanka have a special place for peacocks – Skanda, the God of Kataragama, sits with his wives and peacocks on either side. In addition to that, Lord Vishnu, one of the major Gods in Hinduism is often shown with a peacock in the background.

During your visit to the hill country of Sri Lanka, if you have a stop in Kandy and are going to see the Kandyan Dance, you will see peacocks playing a big role. An entire entity of the dance is where the looks and behaviors of peacocks are exhibited. This part of the dance is known as Mayura (translation of peacock) Vannama.

Saturday, February 20, 2021

Space X

 
Space Exploration Technologies, or SpaceX, is a private aerospace company founded by Tesla CEO Elon Musk in May 2002.

The space services company designs and manufactures spacecraft, rockets, satellites and offers a "rideshare" service an opportunity for private citizens to reserve a space flight that costs upwards of $1 million, according to the company's website.

"You want to wake up in the morning and think the future is going to be great and that’s what being a spacefaring civilization is all about," Musk's mission statement for the company reads. "It’s about believing in the future and thinking that the future will be better than the past. And I can’t think of anything more exciting than going out there and being among the stars."

SpaceX's website touts 92 launches, 55 landings and 37 reflown rockets. The company has had its fair share of failed launches but has since proven its credibility.



ELON MUSK SAYS SPACEX DEVELOPING OFFSHORE SPACEPORTS

 SpaceX, in partnership with NASA, sent U.S. astronauts into orbit for the first time in a decade on May 30 since the government retired NASA's Space Shuttle in 2011. It also became the first private company to send astronauts into orbit.


WHY IS ELON MUSK SENDING SO MANY SATELLITES INTO SPACE?

Musk also plans to reshape the future of broadband internet service with SpaceX's Starlink project, which aims to bring free internet service to rural areas across the globe by 2021 or 2022.

The U.S. Federal Communications Commission gave approval to SpaceX to launch 12,000 Starlink satellites into orbit but delayed its decision on June 10 to approve or deny the company's request to send as many as 42,000 units into space, according to space news outlet Space.com.

There are currently 538 Starlink satellites in orbit.


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