Category: W 3: Digital vs Analog (MS)

Integrate qualitative scientific and technical information to support the claim that digitized signals are a more reliable way to encode and transmit information than analog signals

Non-NGSS Articles, Physical Science, W 2: Digital Info (HS), W 3: Digital vs Analog (MS), W 3: Modeling Electromagnetic Radiation (HS), W 5: Devices (HS), Waves & Electromagnetic Radiation

Exposure to Radiofrequency Electromagnetic Fields From Wi-Fi

GwynneL.

 Exposure to Radiofrequency Electromagnetic Fields From Wi-Fi in Australian Schools SUMMARY: People are often worried about children being exposed to WiFi radiofrequency electromagnetic fields in the classroom, especially when many children are simultaneously downloading or uploading something on their laptops. This study went to 23 different schools in Australia and measured the strength of the… Continue reading Exposure to Radiofrequency Electromagnetic Fields From Wi-Fi

Chemical Reactions, CR 4: Driving Reactions (HS), Physical Science, S&P 1: Atoms & Molecules (MS), S&P 1: Periodic Table Patterns (HS), S&P 3: Heat & Reactions (MS), S&P 4: Molecule Traits (HS), Structure & Properties of Matter, W 1: Graphing Waves (MS), W 1: Wave Relationships (HS), W 2: Digital Info (HS), W 2: Wave Behavior (MS), W 3: Digital vs Analog (MS), W 5: Devices (HS), Waves & Electromagnetic Radiation

Beaming Pyrimidines Part 1

GwynneL.

Nucleobases and Prebiotic Molecules in Organic Residues Produced from the Ultraviolet Photo-Irradiation of Pyrimidine in NH3 and H2O + NH3 Ices (NOT OPEN ACCESS) SUMMARY: If you beam water and pyrimidines at low temperature and pressure in a sealed chamber, you’ll produce pyrimidine-based molecules such as uracil, cytosine, isomers of uracil and cytosine. You’ll also… Continue reading Beaming Pyrimidines Part 1

Chemical Reactions, CR 2: Energy in Reactions (HS), CR 2: Modeling Conservation of Mass (MS), CR 3: Evidence of Reactions (HS), CR 3: Testing Endo/Exothermic Reactions (MS), CR 4: Driving Reactions (HS), CR 5: Conservation of Mass (HS), Physical Science, S&P 4: Molecule Traits (HS), Structure & Properties of Matter, W 1: Graphing Waves (MS), W 1: Wave Relationships (HS), W 2: Digital Info (HS), W 2: Wave Behavior (MS), W 3: Digital vs Analog (MS), W 3: Modeling Electromagnetic Radiation (HS), W 5: Devices (HS), Waves & Electromagnetic Radiation

Beaming Simulated Space Ice

GwynneL.

Enantiomeric separation of complex organic molecules produced from irradiation of interstellar/circumstellar ice analogs(NOT OPEN ACCESS) SUMMARY: To simulate conditions in space and in asteroids and meteorites, scientists put simple gases (water, carbon dioxide, ammonia, and methanol) into a low temperature and low pressure chamber. Then, using UV light, they irradiated these gases (which at the… Continue reading Beaming Simulated Space Ice

Physical Science, W 2: Digital Info (HS), W 3: Digital vs Analog (MS), W 5: Devices (HS), Waves & Electromagnetic Radiation

Using Computers to Model Antibiotic Resistance

GwynneL.

Simulating Multilevel Dynamics of Antimicrobial Resistance in a Membrane Computer Model SUMMARY: This article uses a computer program to model how different factors contribute to the rate of antibiotic resistance in bacteria. The results aren’t predicting anything, they’re just showing the number of possibilities this program can take into account to help give a better… Continue reading Using Computers to Model Antibiotic Resistance

Chemical Reactions, CR 1: Predicting Reactions (HS), Physical Science, S&P 2: Synthetic Materials (MS), S&P 4: Molecule Traits (HS), Structure & Properties of Matter, W 3: Digital vs Analog (MS), Waves & Electromagnetic Radiation

Nanoplastics and the Cell Membrane: A Simulation

GwynneL.

Polystyrene Nanoparticles Perturb Lipid Membranes(NOT OPEN ACCESS) SUMMARY: This experiment used computer graphics to simulate how polystyrene nanoparticles could possibly interact with a biological membrane. This requires knowing the chemical properties of both polystyrene and the cell membrane. The simulation (called a coarse-grained molecular simulation) showed that these tiny pieces of plastic are able to… Continue reading Nanoplastics and the Cell Membrane: A Simulation