Rockin’ Pop-Up: Ask a Scientist

This week we explore what it’s like to be a geologist as Gavin and Graham interview scientists currently studying geology at Uc Santa Cruz. Explore their lab, hear how they solve problems, and learn about the projects they work on.

About the series: Join the Geology Gents, Gavin and Graham, for weekly conversations about rocks live on Facebook. Each week we’ll explore a different geologic topic, from Santa Cruz formations to tips for being a more effective rockhound. Graham Edwards and Gavin Piccione are PhD candidates in geochronology with the Department of Earth and Planetary Sciences at UC Santa Cruz.

Submit your questions ahead of time on Facebook or by emailing events@santacruzmuseum.org, or during the program live on Facebook. Feel free to include pictures of rocks you’d like identified! Pro-tip: the better the picture, the better the ID.

Watch Past Pop-Ups

Rockin’ Pop-Up: Geologic Time Part Two

After exploring the Earth’s “greatest hits” last week, the Geology Gents dig deeper into how we determine the age of rocks.

About the series: Join the Geology Gents, Gavin and Graham, for weekly conversations about rocks live on Facebook. Each week we’ll explore a different geologic topic, from Santa Cruz formations to tips for being a more effective rockhound. Graham Edwards and Gavin Piccione are PhD candidates in geochronology with the Department of Earth and Planetary Sciences at UC Santa Cruz.

Submit your questions ahead of time on Facebook or by emailing events@santacruzmuseum.org, or during the program live on Facebook. Feel free to include pictures of rocks you’d like identified! Pro-tip: the better the picture, the better the ID.

Watch Past Pop-Ups

Visualizing Science: Illustration and Beyond

Where does illustrator end, and infographer begin? How does data visualization fit in? And what does science have to say about the design decisions we make? With the goal of strengthening connections between communities, Jen hopes to get folks thinking about what they can learn from — and teach to — different visual sub-disciplines within the broader orb of science communication.

We are excited to learn about the role of science illustration in data visualization as we continue to feature our virtual exhibition of science illustration, The Art of Nature.

About the speaker: Jen Christiansen is senior graphics editor at Scientific American, where she art directs and produces illustrated information graphics and data visualizations. She completed undergraduate studies in geology and art at Smith College, then happily merged the two disciplines in the scientific illustration graduate program at UC Santa Cruz. She began her publishing career in NY at Scientific American in 1996, moved to DC to join the art department of National Geographic, spent four years as a freelance science communicator, then rejoined the SciAm team in 2007. She writes on topics ranging from reconciling her love for art and science, to her quest to learn more about the pulsar chart on Joy Division’s Unknown Pleasures album cover.

http://jenchristiansen.com/
https://blogs.scientificamerican.com/sa-visual/

Rockin’ Pop-Up: Geologic Time Part One

One of the greatest challenges for most people when it comes to understanding geology is the concept of time. When our lives are measured in minutes, hours, and days, what does 3-7 million years even mean? Or 4 billion years? Explore the conventions of geologic time during this week’s installment.

About the series: Join the Geology Gents, Gavin and Graham, for weekly conversations about rocks live on Facebook. Each week we’ll explore a different geologic topic, from Santa Cruz formations to tips for being a more effective rockhound. Graham Edwards and Gavin Piccione are PhD candidates in geochronology with the Department of Earth and Planetary Sciences at UC Santa Cruz.

Submit your questions ahead of time on Facebook or by emailing events@santacruzmuseum.org, or during the program live on Facebook. Feel free to include pictures of rocks you’d like identified! Pro-tip: the better the picture, the better the ID.

Watch Past Pop-Ups

On the Subject of Seeds

Patricia Larenas loves seeds. With a background in horticulture and art, her work aims to inspire appreciation for this life stage of plants. She also works directly with seeds, helping others grow edible gardens and save seeds. This project explores the germination and growth of a Hopi red lima bean (Phaseolus lunatus). The following is written by Patricia.

Pala hatiko (Phaseolus lunatus) is the Hopi name for this variety of lima bean. Lima beans originated in South America in the area now known as Peru, and were named after the Peruvian city of Lima.

Genetic Diversity

I’ve drawn three beans to show the diversity of the seed coat color: 1. solid red-brown, 2. red-brown with dark streaks and spots, and 3. mostly dark with red-brown streaks and spots. The diversity in color of the beans is an indication of  the genetic diversity in this variety. This is an advantage because genetic diversity means that this bean could have more ability to adapt to different environments.

For example, lima beans usually like to grow in hot areas like the Southwestern and Southern USA . My garden in the Bay Area is cooler than those areas, so with its ability to adapt, this bean may do just fine in my garden under cooler conditions. By growing it for a few years and saving seeds from the most vigorous and productive plants, I can create my own land race that is adapted to growing well in my area.

Germination

All viable seeds are alive. By viable I mean they have the ability to grow once they germinate.  Conditions that kill seeds are: exposure to warm or hot temperatures, old age, exposure to light, humidity that can cause mold to grow or seeds to rot, and diseases. Seeds can stay dormant, but alive, while they are waiting for the proper conditions that will induce them to germinate. Germination is the process by which a seed begins to sprout and develop into a seedling. The proper conditions for seeds to germinate vary greatly for different types of seeds and they have to do with temperature, moisture, and exposure to light or darkness. Additionally, some seeds need a period of exposure to cold, usually about the temperature of your refrigerator (called stratification) before they germinate. This could be from a few weeks to a few months. Other seeds need to have their seed coats abraded or damaged (called scarification) a bit so that moisture can penetrate to begin the germination process. Vegetable seeds rarely need stratification or scarification, but some flower seeds do.

Bean Seeds

Lima bean seeds need soil temperatures of at least 750 F to germinate (up to 900F), besides moisture (water). As shown in my drawings, first, the root radicle grows out of the seed, and the seed coat begins to retract as the bean swells with growth. The seed leaves, or cotyledons, are the two halves that make up the bean seed, these start to open up and the true leaves grow out from in between them, while the radicle develops into a stem and roots. The little seed is now a seedling ready to grow into a full sized plant that will flower and make lima beans!

Patricia Larenas is a featured artist in the 2020 exhibition of science illustration, The Art of Nature.
Find Patricia’s art on Instagram @plarenas_onpaper
See her website for tips on growing your veggie garden and saving seeds http://www.urbanartichoke.com/

Summer Solstice Sun Prints

Happy Summer Solstice! What better way to celebrate than creating art with sunlight? Follow along and harness the power of the sun to create your own sun prints using objects found in nature, construction paper, and sunlight.

Astronomically, the June solstice marks the first day of summer for the Northern Hemisphere, but many cultures consider this event to signal midsummer. This year, solstice occurs at 2:34 p.m. PDT on Saturday, June 20, 2020, which is the exact moment that the Earth’s North Pole is leaning most toward the sun.

Materials:
Construction paper
Nature objects

Optional:
Saran wrap
Plexiglass
Tape
Scissors

  1. Place object(s) on construction paper. If your object is heavy, like a rock, move on to step two! If it is lighter, like a feather or leaf, you may want to tape it down (masking tape works best), or put a piece of saran wrap or plexiglass over the paper (glass won’t work because it will block the UV rays from the sun, which we need to make our prints). You can also cut paper into shapes and tape them to your construction paper.
  2. Place paper under the sun. Since we’re doing this on the solstice, we’ll have many hours of daylight — more than any other day of the year! Hopefully we also have sunny skies with few clouds, which will make our project go faster. If not, however, that’s okay. Just leave your paper out longer. Give your project at least two hours in the sun. Place your paper on the ground and make sure everything is secure so that the wind won’t blow anything away.
  3. Remove objects and enjoy your artwork! Why do you think the sun changed the color of the paper? Why did the paper not change color where the objects were placed?

Post by Marisa

Collections Close-Up: Kelp and Conservation

This month’s Collections Close-Up explores two kinds of conservation: the preservation of biodiversity records in the form of marine algae specimens and the fight to save the kelp forests of the California Coast.

About the series: Zoom into the stories, secrets, and science of our collections during monthly webinars with Collections Manager Kathleen Aston. This live event is an extension of our monthly Collections Close-Up blog, with added insights and intrigue. Members are invited to participate in this program before it is made available to the general public as well as ask questions directly of Kathleen.

Not yet a member? Join today!

Resources:

Rockin’ Pop-Up: Chemical Sedimentary Rocks

This week the Geology Gents are rounding out our recent discussions about the three main rock types (igneous, sedimentary, and metamorphic) by digging a little deeper into sedimentary rocks. This week we’ll explore how sedimentary rocks can be further impacted by their environments, resulting in the phenomenon of chemical sedimentary rocks. Some well known examples are geodes and opals.

About the series: Join the Geology Gents, Gavin and Graham, for weekly conversations about rocks live on Facebook. Each week we’ll explore a different geologic topic, from Santa Cruz formations to tips for being a more effective rockhound. Graham Edwards and Gavin Piccione are PhD candidates in geochronology with the Department of Earth and Planetary Sciences at UC Santa Cruz.

Submit your questions ahead of time on Facebook or by emailing events@santacruzmuseum.org, or during the program live on Facebook. Feel free to include pictures of rocks you’d like identified! Pro-tip: the better the picture, the better the ID.

Watch Past Pop-Ups