Texas Women and Girls in STEM Summit
Friday, December 6, 8:30 a.m. – 4:30 p.m.
Engineering Education & Research Center
The University of Texas at Austin, Austin, Texas
Join the Texas Girls Collaborative Project for the annual Texas Women and Girls in STEM Summit designed to share best practices, connect organizations and individuals, and showcase outstanding efforts to increase the number of girls in STEM and support the retention of women in STEM careers. STEM professionals and all who are engaged in education, outreach, recruitment, and/or retention of women and girls in STEM are invited to join in.
Call for Presenters: Share best practices, highlight promising practices, lead workshops or facilitate discussions. Anticipated tracks include male advocacy/allies, general inclusion and diversity, volunteering and mentoring, pre-K / elementary school engagement, middle school engagement, high school engagement, college engagement, workforce engagement / corporate women in STEM/tech affinity groups. Submit your proposal online by September 30.
Registration: Cost is $80 and includes parking validation, breakfast and lunch. Accepted presenters will receive a discounted registration rate of $40. Registration will be open September 1 through Wednesday, December 5.
Two very large #earthquakes are shaking the full Earth this morning – at 5:39hrs UTC (12:39 am CST) a #magnitude M6.6 earthquake shook NW #Australia, and at 09:10hrs UTC (04:10 am CST) a very powerful magnitude M7.3 earthquake shook Laiwui, Indonesia. Reporting states no tsunami warnings were issued. Both events travelled across the Earth and were recorded by #RaspberryShake Station RAD87, operated by Texas Educational Seismic Project (#txesp, http://www.txesp.org) in Spring, Texas, USA. Below are images of both events – filters have been applied.
Initial Reporting of the Damages and Human Losses
A strongly damaging magnitude 8.0 earthquake has shaken Peru early this morning, May 26, 2019 at 07:41hrs UTC (02:41 am CST). Earthquakes of this enormous size and energy occur infrequently and may cause catastrophic human and economic losses. This earthquake was recorded here in Spring, TX by Raspberry Shake Station RAD87. Images shown include un-filtered and filtered seismograms of this event (read associated captions).
Initial Reporting of the Damages and Human Losses
THANK YOU to our anonymous donors this past month – TXESP is so grateful for your generous gifts! We will be using the monies to pay two bills and put the remaining amount towards a future purchase of a few classroom mineral specimens.
With gratitude, we thank you for helping us continue our community STEM outreach mission to further scientific inquiry and facilitate open-ended scientific investigations!
“Did we detect that LARGE global earthquake? Maybe it’s “not there”…..I just observe noise”. On May 14th, 2019, a MAJOR magnitude M7.5 earthquake hit Papua New Guinea. Here in Spring, TX, operated by Texas Educational Seismic Project, the ground motion was detected very obviously on the EQ1 educational seismograph (see Figure 1a). On site, we also have a Raspberry Shake seismograph which we hoped had an equally observable response to the massive earthquake (Figure 1b). Due to mechanical and technological differences between the instruments, we did **not** see the response on the RS. Or did we?
For over a year, TXESP (and others) have been carefully reviewing the technical capabilities of the Raspberry Shake seismographs compared to different educational seismographs (EQ1, AS1). One of the most important concepts we are continuously learning is the application of filtering data. In signal processing, a filter is a device or process that removes some unwanted components or features from a signal. Filtering is a class of signal processing, the defining feature of filters being the complete or partial suppression of some aspect of the signal.
Compare the un-filtered / filtered images (Figures 2a/b and 3a/b) – they now appear more similar to each other and we can “easily” see the earthquake recorded by both instruments.
TEACHABLE MOMENT: Watch the videos, filmed during the shaking of two earthquakes in the Philippines, which provide two excellent visual demonstrations of the physics/engineering concept of a wave’s resonance frequency. When an earthquake’s wave(s) reach the equal an object’s resonant frequency, the object will begin to oscillate with the same period of the wave.
THE BACKGROUND: In the past 48 hours, two major earthquakes have occurred in the Philippines. A magnitude M6.1 event happened on 04/22/2019 at 21:11 hrs UTC and was 12 miles deep; the latter event was stronger with a M6.4 on 04/23/2019 at 05:37 hrs UTC and was 34 miles deep.
In the first video, found HERE, a sky-rise condominium begins to sway at the same frequency of the M6.1 earthquake surface waves, and thus, water from the rooftop’s swimming pool begins to pour over the side of the high rise building. Injuries are unknown at this time. The second video (found HERE) observes a hotel’s chandelier tiers swaying at different frequencies, dependent on the individual tier’s length, in harmony with the M6.4 earthquake’s surface wave periods. (<<< one “wave” may be comprised of several wave periods convolved together).