Technologies

Test for COVID using your phone camera? A university lab is trying it out

The method is promising and cheap, though in very early stages.

For the most up-to-date news and information about the coronavirus pandemic, visit the WHO and CDC websites.

Getting shipped a handful of free at-home COVID tests from USPS was helpful, but what if you could test yourself whenever you wanted, using your phone’s camera? Academic scientists have developed a testing method that just needs some affordable lab equipment and your smartphone, and early results suggest it’s as accurate as PCR tests.

The system, developed by University of California, Santa Barbara scientists and described in a new paper published in the journal JAMA Network Open, needs less than $100 in relatively common equipment like a hot plate, according to Gizmodo. Thereafter, each test costs only $7, making it potentially ideal for remote communities or individuals struggling to secure PCR tests.

The method is pretty simple: Download the free app developed by scientists, Bacticount, and perch your phone over the hot plate with the rear camera facing down. You’ll place your saliva into a test kit that’s on the hot plate, drop in a reactive solution that will make viral RNA more noticeable to your phone’s camera, and run the app. The solution will bond with the viral material (both COVID and the flu were tested in the study) and turn bright red, and the app will estimate the amount of viral load in the saliva based on how quickly the color reaction happened.

The system is called Smart-lamp, for smartphone «loop-mediated isothermal amplification,» which is the heat-and-solution approach used by the UCSB scientists. It’s very cheap and seems easy to set up, which is perfect for the project’s goal to satisfy a need «in low-income and middle-income countries for low-cost, low-tech, yet highly reliable and scalable testing for SARS-CoV-2 virus that is robust against circulating variants.»

But the method still needs plenty of vetting, as this initial study contained a very small sample of 50 symptomatic and asymptomatic patients in one Southern California area. In other words: Don’t expect to be able to order Bacticount-compatible kits and do your own testing soon, especially since the app has only been calibrated to work with the cameras on Samsung Galaxy S9 phones.

Still, the system is promising, and we’ve reached out to the UCSB researchers about how soon it could be authorized for public use. If it’s as accurate as initial tests suggest, its affordability and scalability could be a serious asset to testing capabilities in every country as the need for COVID testing continues into 2022.

Technologies

Today’s NYT Strands Hints, Answers and Help for June 9, #463

Here are hints and answers for the NYT Strands puzzle No. 463 for June 9.

Looking for the most recent Strands answer? Click here for our daily Strands hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections and Connections: Sports Edition puzzles.

Todays NYT Strands puzzle features a bunch of mysterious words. Some are a bit difficult to unscramble so if you need hints and answers, read on.

I go into depth about the rules for Strands in this story.

If you’re looking for today’s Wordle, Connections and Mini Crossword answers, you can visit CNET’s NYT puzzle hints page.

Read more: NYT Connections Turns 1: These Are the 5 Toughest Puzzles So Far

Hint for today’s Strands puzzle

Today’s Strands theme is: What you see isn’t what you get

If that doesn’t help you, here’s a clue: Hiding in plain sight

Clue words to unlock in-game hints

Your goal is to find hidden words that fit the puzzle’s theme. If you’re stuck, find any words you can. Every time you find three words of four letters or more, Strands will reveal one of the theme words. These are the words I used to get those hints but any words of four or more letters that you find will work:

CALL, CALLS, FALL, FALLS, SAME, SEAM, LAND, ROSE, COVE, CANE, CANES, FLUME, FLUMES, DIGS, MEAL, COLA, CARD, CASE

Answers for today’s Strands puzzle

These are the answers that tie into the theme. The goal of the puzzle is to find them all, including the spangram, a theme word that reaches from one side of the puzzle to the other. When you have all of them (I originally thought there were always eight but learned that the number can vary), every letter on the board will be used. Here are the nonspangram answers:

MASK, CLOAK, COVER, FACADE, DISGUISE, CAMOUFLAGE

Today’s Strands spangram

Today’s Strands spangram is FALSEFRONT. To find it, start with the F that’s two rows over from the far left and two letters down. Wind around into a question mark.

Technologies

Today’s NYT Connections Hints, Answers and Help for June 9, #729

Here are some hints and the answers for Connections for June 9, No. 729.

Looking for the most recent Connections answers? Click here for today’s Connections hints, as well as our daily answers and hints for The New York Times Mini Crossword, Wordle, Connections: Sports Edition and Strands puzzles.

Do you play the NYT Spelling Bee? If you do, you should be able to ace the purple category in today’s NYT Connections puzzle. Read on for clues and today’s Connections answers.

The Times now has a Connections Bot, like the one for Wordle. Go there after you play to receive a numeric score and to have the program analyze your answers. Players who are registered with the Times Games section can now nerd out by following their progress, including number of puzzles completed, win rate, number of times they nabbed a perfect score and their win streak.

Read more: Hints, Tips and Strategies to Help You Win at NYT Connections Every Time

Hints for today’s Connections groups

Here are four hints for the groupings in today’s Connections puzzle, ranked from the easiest yellow group, to the tough (and sometimes bizarre) purple group.

Yellow group hint: Control-C.

Green group hint: Don’t wait till the last minute.

Blue group hint: Pals to plan a heist.

Purple group hint: Think another NYT online game.

Answers for today’s Connections groups

Yellow group: Keyboard shortcut commands.

Green group: Secure in advance.

Blue group: Crime organization.

Purple group: Spellling Bee ranks minus a letter.

Read more: Wordle Cheat Sheet: Here Are the Most Popular Letters Used in English Words

What are today’s Connections answers?

The yellow words in today’s Connections

The theme is keyboard shortcut commands. The four answers are paste, print, quit and save.

The green words in today’s Connections

The theme is secure in advance. The four answers are book, order, request and reserve.

The blue words in today’s Connections

The theme is crime organization. The four answers are crew, family, ring and syndicate.

The purple words in today’s Connections

The theme is Spelling Bee ranks minus a letter. The four answers are genus, goo, mazing and slid. (Genius, good, amazing and solid.)

Technologies

I Made Google Translate My Default on iPhone Before a Trip and It Saved Me More Than Once

Google Translate supports far more languages than Apple’s app, and it’s easy to make the switch.

If you’re traveling overseas this summer, the Google Translate app can come in handy to quickly translate a road sign or conversation. The latest Google Translate update allows you to pick the app as your default translation app for Apple iPhones and iPads running iOS and iPadOS 18.4 and later. Previously, you were limited to the built-in Apple option.

Google began leveraging AI to boost Google Translate’s offerings, adding 110 languages last year to increase its total support for 249 languages. Compare that to Apple Translate, which supports 19 languages. Neither Google nor Apple responded to a request for comment.

Both apps offer voice and text translation, including a camera feature that lets you instantly translate by pointing your camera at text. Both also allow you to use translation features without an internet connection, which can come in particularly handy when traveling to more remote locations.

After using both, I found that the Google Translate picked up speech a little quicker so I didn’t have to constantly repeat myself, and the audio pronunciations were a little easier to understand than on Apple Translate. I switched to Google Translate as the default on my iPhone, and here’s how you can, too.