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February 22, 2021

Perseverance Rover's Descent and Touchdown on Mars

NASA just released this fantastic footage of last Tuesday's incredible achievement.

YouTube caption

NASA's Mars 2020 Perseverance mission captured thrilling footage of its rover landing in Mars' Jezero Crater on February 18, 2021.

The real footage in this video was captured by several cameras that are part of the rover's entry, descent, and landing suite.

The views include a camera looking down from the spacecraft's descent stage (a kind of rocket-powered jet pack that helps fly the rover to its landing site), a camera on the rover looking up at the descent stage, a camera on the top of the aeroshell (a capsule protecting the rover) looking up at its parachute, and a camera on the bottom of the rover looking down at the Martian surface. The audio embedded in the video comes from the mission control call-outs during entry, descent, and landing.

For more information about Perseverance, visit https://mars.nasa.gov/perseverance

February 22, 2021 at 04:01 PM | Permalink | Comments (0)

The Vintage Knob — Online Vintage Audio Museum*

1970 Garrard Zero 100

*Along with a forum and image bank.

1994 Krell Reference 64

What's not to love about this site, which covers the waterfront from Accuphase to Yamaha and points in between?

1973 Marlux Model 607

Fair warning: There goes the day for gearheads.

Images from the top down: 1970 Garrard Zero 100; 1994 Krell Reference 64; 1973 Marlux Model 607.

February 22, 2021 at 02:01 PM | Permalink | Comments (1)

Experts' Experts — Do different ways of using citrus peel to garnish cocktails produce different tastes?

Zz

Above, a question that appeared in Cook's Illustrated's Notes From Readers section.

The good people at that magazine — as obsessive a group as ever existed outside Jony Ive's secret studio in Cupertino — drilled down deep to enlighten us, as follows:

There are three common citrus garnishes for cocktails: The first is a "twist, " a simple disk of citrus peel that is squeezed into the drink to release essential oils and then rubbed around the rim of the glass and discarded.

The second is a "flamed twist," in which a flame is held between the drink and the peel so that when the peel is squeezed, its oils ignite briefly.

The third type is a "swatch," a band of zest with a little pith attached that is twirled and placed in the drink.

We made all three types of garnishes with orange peel and tasted each in a simple Negroni cocktail.

We found that the twist contributed bright orange notes that enlivened the drink.

The flamed twist offered sulfurous undertones and had a somewhat subdued orange fragrance.

The swath added citrus notes along with mild bitterness from the pith.

In sum, fancy citrus garnishes are more than just ornamental: Your choice should hinge on the flavor profile you're trying to create.

February 22, 2021 at 12:01 PM | Permalink | Comments (0)

Egyptian Cat Ring

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Gold with carnelian gemstone.

Third Intermediate Period: 1070-1712 B.C.E.

In the collection of the British Museum.

February 22, 2021 at 10:01 AM | Permalink | Comments (0)

Lyric Speaker Canvas — 'Decorate your home with your favorite lyrics'

Say what?

From the website:

The sound design of Lyric Speaker Canvas is by the Japanese creative agency Tom's lab, whose world-class sound designers have a legacy of knowledge and experience in creating high-end speaker systems.

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With these world-class sound designers, we have aimed for an acoustic effect overflowing with rich musicality and a clear vocal sound which gives the listener the feeling that the singer is there in the room with them.

We have created beautiful sound with a rich frequency range by using two boards to form a large baffle plate that reflects sound efficiently.

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In addition, adopting the rear-reflection method which uses an interior wall as the resonating part of the speaker when it's placed near a wall adds a uniqueness to our sound quality.

Features and Details:

• 18.8"W x 15.7"H x 4.7"D

• Weight: 12.3 lb

• Silver/Black

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Lyric Speaker Canvas: $1,900.

[via Rocketboy]

February 22, 2021 at 08:01 AM | Permalink | Comments (1)

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