The meaning of blood pressure SUMMARY: This article talks about all the physical aspects of blood pressure. The first few sections talks about the 3 forces that affect blood pressure: elastic, kinetic, and gravitational. The author also talks about how kinetic energy can be converted to elastic energy in the case of an aneurysm in… Continue reading The meaning of blood pressure
Category: F&I 4: Gravity & Mass (MS)
Construct and present arguments using evidence to support the claim that gravitational interactions are attractive and depend on the masses of interacting objects
The physics of pollinator attraction
The physics of pollinator attraction SUMMARY: This article focuses on the physical properties of plants that have evolved to help them select the appropriate pollinators and discourage non-pollinators (nectar stealers). The first feature the article addresses is the shape of the cells. Flower petals often have cone-shaped cells to help scatter more light. This gives… Continue reading The physics of pollinator attraction
Microgravity and the Respiratory System
Microgravity and the Respiratory System SUMMARY: What are the effects of gravity on lung function? This study first breaks down how gravity works and its effects on living organisms. The second section explains lung function with and without gravity. Finally, the last sections look at the difference in lung function during and after short and… Continue reading Microgravity and the Respiratory System
Why Is Pluto Red Part 1
Ice Chemistry on Outer Solar System Bodies: Carboxylic Acids, Nitriles, and Urea Detected in Refractory Residues Produced from the UV Photolysis of N2:CH4:CO-Containing Ices SUMMARY: Using a ratio of 100:1:1 of nitrogen gas, methane, and carbon monoxide at very low temperatures and pressure, scientists found that beaming the gas mixture with UV photons can produce… Continue reading Why Is Pluto Red Part 1