---
title: "reveal.js+pandoc slide examples"
date: November 3, 2021
slideNumber: false
width: 1600
height: 1000
transition: fade
css: ../assets/style.css
theme: simple
title-slide-attributes: 
    data-background-image: "https://horseshoebend.com/wp-content/uploads/2017/04/IMG_8812.jpg"
    data-background-opacity: "1.0"

verticator:
    enable: true
menu:
    enable: true
chalkboard:
    enable: false
---

# Incremental list
What are the major themes and issues with solar power?

::: incremental
* Intermittent
    * Energy storage
* Cloud cover
* Materials availability
* Land use requirements
:::

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## iframe embedded content
<iframe src="https://www.popsci.com/science/article/2013-04/solar-panels-now-make-more-electricity-they-use/" width=1500 height=800></iframe>

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## two columns
:::{.cols2}
:::{.col2-vp}
* $E = \sigma T^4\rightarrow T=5777$ K
* Distribution
    * 7% ultraviolet (UV)
    * 47% visible
    * 46% infrared (IR)
* Atmospheric losses
    * reflection
    * absorption: O$_3$, H$_2$O, $O_2$, CO$_2$
    * Rayleigh scattering: molecules $d\ll\lambda$
    * Mie scattering: particles (pollution) $d\gg\lambda$
:::
:::{.col2-v}
<img src="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Solar_spectrum_en.svg/1600px-Solar_spectrum_en.svg.png" title="https://upload.wikimedia.org/wikipedia/commons/thumb/e/e7/Solar_spectrum_en.svg/1600px-Solar_spectrum_en.svg.png" width=600>
:::
:::

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# Scrollable image

<div class="scrollpic">
<a href="https://www.scientificamerican.com/article/renewable-energys-hidden-costs/" target="_blank">
<img src="https://www.scientificamerican.com/media/inline/renewable-energys-hidden-costs_3.jpg" >
</a>
</div>

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## Background image {data-background-image="brf.png" data-background-opacity="0.5"}

* If there were no false positives and you tested positive, you'd have it 100%
* Consider 80 people
    * 1 has COVID
    * 79 don't
    * positive tests:
        * 1 that has COVID
        * 79 * 5% = 3.95 who don't
    * chances of having COVID given the positive test = 1/(1+3.95) ≈ 1/5 = 20%
* Only 1/80 have it, but the test says 5/80 do. 
* The question is, **given a positive test** what are the chances of having COVID?
    * The "base rate" is 5, not 80, and the answer is 1/5 not 1/80. 

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## Equations
Inline equation $f(x) = \beta x^2$ example; single line equations below:
$$P(C|+)P(+) = P(+|C)P(C)$$
$$P(C|+) = \frac{P(+|C)P(C)}{P(+)}$$
$$P(C|+) = \frac{(1)(1/80)}{\underbrace{1/80}_{\mbox{+ test, have COVID}} + \underbrace{0.05(79/80)}_{\mbox{+ test, no COVID}}} = 20.2\%$$

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## incremental with cols/figs
:::::: {.columns}
::: {.column}
::: incremental
* Questions?
    * where to get the land?
    * does the wind blow well there?
    * how far away is the power destination?
    * compare the copper (or some other relevant material) to the annual world production and/or known resource.
    * how long do they last?
    * [can the blades be recycled, landfilled?](https://www.bloomberg.com/news/features/2020-02-05/wind-turbine-blades-can-t-be-recycled-so-they-re-piling-up-in-landfills)
    * affect on birds, noise, neighbors
:::
:::
::: {.column}
<img src="https://en.wind-turbine-models.com/getfoto-5lk9tnZ0C7V-turbine-vestas_v-90.jpg" height=450>
<img src="turbine_blade.gif" height=450>
<br>
<img src="wind_3CMO.png" width=400, title="3 CMO for typical wind farm area">

*<small>3 CMO for typical wind farm area*</small>
:::
::::::

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# hover text

* bullet 1
* bullet 2
* <span class="hoverme">Hover over me<br></span>
<span class="hide">
$$f(x) = \int_a^bx^2dx$$
<img src="https://cdn.pixabay.com/photo/2015/04/19/08/32/marguerite-729510__480.jpg" title="Understanding Renewable Energy Systems, Quaschning" width=700>  
</span>
* bullet more

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