Brain Game: I Heart Huxtables

At the Huxtable household, Valentine's Day is a special day. Mother Claire kicks off the holiday a week early by secretly assigning each of her five children the job of sending a valentine card to one other sibling. She makes the assignments herself, but asks the kids to keep quiet until the five cards are delivered. She even takes the time to ensure that the sender of each card doesn't receive a card from that same sibling. What a mom, huh?

Anyway, you probably know the names of the Huxtable brood. Sondra is the oldest, followed by Denise, Theo, Vanessa, and little Rudy. Given the above information and these three clues, can you determine the senders and recipients of each of the five valentine cards?

1. Theo sent his valentine to a sibling older than he.

2. Sondra's valentine went to one of the two youngest Huxtables.

3. Denise, who did not send a valentine to Vanessa, thanked Rudy for hers.

Here is the SOLUTION.


Rudy sent a valentine to Denise;
Vanessa sent a valentine to Rudy;
Theo sent a valentine to Sondra;
Denise sent a valentine to Theo; and
Sondra sent a valentine to Vanessa.


Clue #1 indicates that Theo sent a valentine to either Denise or Sondra.

Clue #2 reveals that Sondra sent a valentine to either Rudy or Vanessa.

According to clue #3, Denise did not send Vanessa's valentine. Also, Rudy sent Denise's valentine.

By elimination, Theo sent Sondra's valentine.

Since Rudy sent Denise's card, Denise could not have sent Rudy's valentine; so Denise's card went to Theo.

Vanessa could not have sent a valentine to herself, so hers went to Rudy, and Sondra's went to Vanessa.

Original image
Ian Hitchcock/Getty Images
Can’t See the Eclipse in Person? Watch NASA’s 360° Live Stream
Original image
Ian Hitchcock/Getty Images

Depending on where you live, the historic eclipse on August 21 might not look all that impressive from your vantage point. You may be far away from the path of totality, or stuck with heartbreakingly cloudy weather. Maybe you forgot to get your eclipse glasses before they sold out, or can't get away from your desk in the middle of the day.

But fear not. NASA has you covered. The space agency is live streaming a spectacular 4K-resolution 360° live video of the celestial phenomenon on Facebook. The livestream started at 12 p.m. Eastern Time and includes commentary from NASA experts based in South Carolina. It will run until about 4:15 ET.

You can watch it below, on NASA's Facebook page, or on the Facebook video app.

Cephalopod Fossil Sketch in Australia Can Be Seen From Space

Australia is home to some of the most singular creatures alive today, but a new piece of outdoor art pays homage to an organism that last inhabited the continent 65 million years ago. As the Townsville Bulletin reports, an etching of a prehistoric ammonite has appeared in a barren field in Queensland.

Ammonites are the ancestors of the cephalopods that currently populate the world’s oceans. They had sharp beaks, dexterous tentacles, and spiraling shells that could grow more than 3 feet in diameter. The inland sea where the ammonites once thrived has since dried up, leaving only fossils as evidence of their existence. The newly plowed dirt mural acts as a larger-than-life reminder of the ancient animals.

To make a drawing big enough to be seen from space, mathematician David Kennedy plotted the image into a path consisting of more than 600 “way points.” Then, using a former War World II airfield as his canvas, the property’s owner Rob Ievers plowed the massive 1230-foot-by-820-foot artwork into the ground with his tractor.

The project was funded by Soil Science Australia, an organization that uses soil art to raise awareness of the importance of farming. The sketch doubles as a paleotourist attraction for the local area, which is home to Australia's "dinosaur trail" of museums and other fossil-related attractions. But to see the craftsmanship in all its glory, visitors will need to find a way to view it from above.

[h/t Townsville Bulletin]


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