Year: 2021

Developer Tip: 24 Quick Xcode Tips

There's a website called Hacking with Swift by Paul Hudson that has become the "bible" for Swift and SwiftUI developers like myself.  This web site (and his YouTube videos) have become a main stay for me when I run into a coding problem.

Paul had made a video called "24 Quick Xcode Tips" that can help developers who are new and have used Xcode for a long time.

Click below to view it (it'll be worth it).

[su_youtube url="https://youtu.be/8kiR_QsQNPc" width="200" height="300"]

NASA Invites Public to Share Thrill of Mars Perseverance Rover Landing

NASA is inviting the public to take part in virtual activities and events as the agency’s Mars 2020 Perseverance rover nears entry, descent, and landing on the Red Planet, with touchdown scheduled for approximately 3:55 p.m. EST Thursday, Feb. 18.

Live coverage and landing commentary from NASA’s Jet Propulsion Laboratory in Southern California will begin at 2:15 p.m. on the NASA TV Public Channel and the agency’s website, as well as the NASA App, YouTube, Twitter, Facebook, LinkedIn, Twitch, Daily Motion, and THETA.TV.

Among the many firsts with this mission is the agency’s first-ever Spanish-language show for a planetary landing. On Thursday, Feb. 18, at 2:30 p.m., NASA will air “Juntos perseveramos,” a show that will give viewers an overview of the mission to Mars and highlight the role Hispanic NASA professionals have had in its success.

During landing, the rover will plunge through the thin Martian atmosphere at more than 12,000 mph (about 20,000 kph). A parachute and powered descent will slow the rover down to about 2 mph (3 kph). During what is known as the sky crane maneuver, the descent stage will lower the rover on three cables to land softly on six wheels at Jezero Crater.

Perseverance also is carrying a technology experiment – the Ingenuity Mars Helicopter – that will attempt the first powered, controlled flight on another planet.

“If there’s one thing we know, it’s that landing on Mars is never easy,” said NASA Associate Administrator for Communications Marc Etkind. “But as NASA’s fifth Mars rover, Perseverance has an extraordinary engineering pedigree and mission team. We are excited to invite the entire world to share this exciting event with us!”

NASA is offering many ways for the public to participate and stay up to date on landing information, mission highlights, and interaction opportunities.

Watch and Participate Virtually

Connect with like-minded space enthusiasts, receive a NASA Social badge, ask questions, and take part in other virtual activities by signing up for the Perseverance Rover Virtual NASA Social event.

NASA also will provide a virtual guest experience for members of the public during landing, with notifications about mission updates, curated mission resources, and a virtual passport stamp available after landing.

Stay connected and let people know you're following the mission on Twitter, Facebook, and Instagram. Join the conversation, ask questions, and get answers online by using #CountdownToMars.

Follow and tag these accounts:

Twitter: @NASA@NASAPersevere@NASAMars

Facebook: NASANASAPersevere

Instagram: NASA

At 7 p.m. EST Tuesday, Feb. 16, a NASA Social live show previewing landing day will stream live via the JPL YouTube, Facebook, and Twitter accounts.

You also can follow every step of entry, descent, and landing with this visualization, and get a preview of all the excitement with a new video.

Opportunities for Students, Teachers, Educators

Design, build, and land your own spacecraft – just like NASA scientists and engineers do. Join NASA’s Mission to Mars Student Challenge, where classrooms, informal education groups, families and individuals will be able to participate in landing week question-and-answer sessions with mission experts and submit student questions and work that could be featured during NASA broadcasts leading up to and on landing day.

A Mars 2020 STEM toolkit also is available, with stories on the students who named Perseverance and Ingenuity, opportunities to code your own Mars exploration games, and more.

Join scientists from NASA and JPL at a briefing of the National Academies Space Studies Board and Aeronautics and Space Engineering Board Wednesday, Feb. 17, at 11:30 am EST to hear more about Perseverance’s journey to Mars’ Jezero Crater, NASA’s Mars Sample Return, and the challenges the team has overcome. Participants include:

  • Thomas Zurbuchen, NASA associate administrator for science
  • Lori Glaze, director of NASA’s Planetary Science Division
  • Bobby Braun, Mars Sample Return program manager at JPL
  • Matt Wallace, deputy project manager, Mars 2020 at JPL
  • Katie Stack Morgan, Mars 2020 deputy project scientist at JPL

Interactive Experiences

You also can try out a virtual photo booth that allows you to pose next to the Perseverance rover, listen to the differences between sounds on Mars and Earth, and check out other interactive experiences on the mission’s website.

Send Your Name to Mars, Again!

Perseverance is carrying three dime-size chips with 11 million names submitted by people all over the world. Anyone who missed the chance to send their name on Perseverance can sign up to send their name on a future Mars mission at:

https://mars.nasa.gov/participate/send-your-name/mars2020

Lighting Towns Red Around the World

To celebrate Perseverance’s Red Planet landing, the Empire State Building in New York will light its tower red on Tuesday, Feb. 16, starting at sunset until 2 a.m. the following morning. In addition, the Los Angeles International Airport gateway pylons will glow red from sundown on Wednesday, Feb. 17, through sunrise Friday, Feb. 19. Other sites in the United States recognizing the upcoming landing include select buildings along the Chicago skyline, such as the Adler Planetarium. NASA invites cities around the country and world to participate in “lighting the town red.”

Additional Resources

Press kits for the Perseverance rover landing and the Ingenuity Mars Helicopter are available and feature deeper dives into the mission and science, as well as links to image and video resources.

A Perseverance landing toolkit provides additional details about all the activities planned for landing week, as well as additional links for learning more about the rover and helicopter.

NASA Televised Event Schedule

In addition to social media coverage, NASA TV will air a number of events leading up to, including, and following the landing.

Members of the public may ask questions on social media during the events using #CountdownToMars.

The following events currently are scheduled to air live (all times Eastern). Please check the NASA TV schedule for the latest updates:

 

Tuesday, Feb. 16

 

1 p.m. – News conference: Mission engineering and technology overview

 

3:30 p.m. – News conference: Mission science overview

 

Wednesday, Feb. 17

 

1 p.m. – News conference: Mission landing update

 

3 p.m. – News conference: Searching for Ancient Life at Mars and in Samples Returned to Earth

 

Thursday, Feb. 18

 

2:15 p.m. – Live landing Broadcast on the NASA TV Public Channel and online.

 

  • In addition, an uninterrupted clean feed of cameras from inside JPL Mission Control, with mission audio only, will be available starting at 2 p.m. on the NASA TV Media Channel, and at JPL’s Raw YouTube channel.

 

A 360-degree livestream of the Mars landing from inside mission control, including landing commentary, will be available at the JPL’s main YouTube channel.

 

2:30 p.m. – “Juntos perseveramos,” the Spanish-language live landing commentary show, will air on  NASA en Español’s YouTube channel.

 

Approximately 3:55 p.m. – Expected Perseverance touchdown on Mars

 

No earlier than 5:30 p.m. – Postlanding news conference

 

Friday, Feb. 19

 

1 p.m. – News conference: Mission status update

 

Monday, Feb. 22

 

2 p.m. – News conference: Mission status update

 

To watch news conferences and commentary online, please visit:

http://www.youtube.com/nasajpl/live

 

A complete list of ways to watch online can be found at:

 

https://go.nasa.gov/3ojDWkj

 

More About the Mission

 

A key science objective of Perseverance’s mission on Mars is astrobiology, including the search for signs of ancient microbial life. The rover will characterize the planet’s geology and past climate, pave the way for human exploration of the Red Planet, and will be the first mission to collect and cache Martian rock and sediment for later return to Earth. Subsequent NASA missions, in cooperation with ESA (European Space Agency), would send spacecraft to Mars to collect these sealed samples from the surface and return them to Earth for in-depth analysis.

 

The Mars 2020 mission is part of a larger NASA initiative that includes missions to the Moon as a way to prepare for human exploration of the Red Planet. NASA will establish a sustained human presence on and around the Moon through NASA’s Artemis lunar exploration plans.

 

For more about Perseverance:

 

https://mars.nasa.gov/mars2020

and

https://nasa.gov/perseverance

 

For more about Ingenuity:

https://mars.nasa.gov/technology/helicopter

-end-

Apple launches self-serve activation lock removal request web page

Activation Lock is designed to prevent anyone else from using your iPhone, iPad, or iPod touch if it's ever lost or stolen. When you mark the device as lost on the iCloud website, this locks the device's screen with a passcode and lets you display a custom message with your phone number to help you get it back. And if the device is erased, Activation Lock requires the original owner's Apple ID and password to be entered.

When an activation lock is enabled, customers would have to contact Apple to unlock the device.  Now Apple has made the feature available via a web page.

For more information about this feature, click here.

BitPay adds support for Apple Pay

BitPay, the world’s largest provider of Bitcoin and cryptocurrency payment services, today announced that U.S. cardholders of the BitPay Prepaid Mastercard can add their card to Apple Wallet and spend with Apple Pay.

With Apple Pay, BitPay cardholders can make secure purchases in stores, in apps, and online. In addition, customers waiting on delivery of their plastic card can add their virtual card to Apple Wallet via the BitPay Wallet app and can start spending immediately. Support for Google Pay and Samsung Pay is planned for later this quarter.

“We have thousands of BitPay Wallet app customers using the BitPay Card who are always looking for new places and ways to spend their crypto,” said BitPay CEO Stephen Pair in a statement. “Adding Apple Pay and soon Google and Samsung Pay makes it easy and convenient to use the BitPay Card in more places from day-to-day items to luxury purchases.”

BitPay continues to innovate its global blockchain solutions to make paying with Bitcoin and other cryptocurrencies faster, easier and safer than ever before. The BitPay Wallet app is designed to enable customers to manage and spend Bitcoin, and also turn it into dollars and spend with the BitPay Card.

For power blockchain users, the BitPay Wallet app supports an array of options to buy and store crypto and make online payments. Users can instantly buy gift cards from hundreds of top retailers in store and online. The BitPay Card enables customers to instantly convert cryptocurrency into fiat currency, which is then loaded onto the card and can be spent anywhere Mastercard debit is accepted around the world. Customers can also use the cards online for purchases and to withdraw cash from ATMs.

The BitPay Wallet app supports Bitcoin, Bitcoin Cash, and Ether, as well as four dollar-pegged stablecoins, USDC, GUSD, PAX and BUSD.

To add a card to Apple Wallet, cardholders need to have the most recent version of the BitPay app, 12.1.0 which is available in the App Store.

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