mxplx

Memes in the Watson category “/science/weather”

21–40 of 90

How to Talk Math With Kids

Some simple ways to work numbers into the conversation: Note numbers on signs when you’re walking or driving with children: speed limits and exit numbers, building addresses, sale prices in store windows. Ask children to count how many toys they’re playing with, how many books they’ve pulled out to read, or how many…

Meaningful, Transferable, and Purposeful Understanding

...meaningful, transferable, and purposeful understanding: • Meaningful: The understanding is relevant to the students’ lives and needs. Students connect with the learning. • Transferable: The understanding fosters creative problem-solving and application. Students can apply their understanding to unique and out-of…

The Terran Computational Calendar

Synchronized with the northern winter solstice, the terran computational calendar began roughly*10 days before the UNIX Epoch. Each year is composed of 13 identical 28-day months, followed by a 'minimonth' that houses leap days (one most years and two every 4th but not 128th year) and leap seconds (issued by the IERS…

Perceptrons and Sigmoid Neurons

A way you can think about the perceptron is that it's a device that makes decisions by weighing up evidence. Let me give an example. It's not a very realistic example, but it's easy to understand, and we'll soon get to more realistic examples. Suppose the weekend is coming up, and you've heard that there's going to be…

Giordano Bruno Observations of the Sun

The meaning is the more excellence, as it is the less vulgar, and you will see that it is single, unified, and not strained. You must consider that although the sun appears different with respect to different regions of the earth according to time and place, nevertheless with respect to the entire globe it acts always…

The Great Demotions and the Promotion of the Human Race

Sagan had talked of the “great demotions.” Humanity had learned, painfully, that it did not live on a planet at the center of the universe, and further demotions followed. We were not (in Sagan’s view) the purpose of the Creation, not specially chosen by a divine authority, and were in fact just one evolutionary twist…

You Can't Predict What You Are Going to Do

In the physical world, the only way to learn tomorrow’s weather in detail is to wait twenty-four hours and see, even if nothing is random at all. The universe is computing tomorrow’s weather as rapidly and as efficiently as possible; any smaller model is inaccurate, and the smallest error is amplified into large…

A Second is Subjective

How many seconds are there in a lifetime? 10^9 sec A second is an arbitrary time unit, but one that is based on our experience. Our visual system is bombarded by snapshots at a rate of around three per second, caused by rapid eye movements called saccades. Athletes often win or lose a race by a fraction of a second…

The Connections in the Brain

Two neurons can communicate with each other at a synapse, which is the computational unit in the brain. The typical cortical synapse is less than a micron in diameter (10-6 meter), near the resolution limit of the light microscope. If the economy of the world is a stretch for us to contemplate, thinking about all the…

Exodus to the Virtual World

Anyone who sees a hurricane coming should warn others. I see a hurricane coming. Over the next generation or two, ever larger numbers of people, hundreds of millions, will become immersed in virtual worlds and online games. While we are playing, things we used to do on the outside, in “reality,” won’t be happening…

NPCs in the Game "Real Life"

The NPCs have no depth. The can only carry on brief repetitive conversations about simple topics, such as the weather or football. They all follow simple repetitive paths from home, to work, to the store, and back home again where they spend the majority of their time watching television.

Anecdote About the Cuckoo Clock in China

The gaudy watches of indifferent workmanship, fabricated purposely for the China market and once in universal demand, are now scarcely asked for. One gentleman in the Honourable East India Company’s employ took it into his head that cuckoo clocks might prove a saleable article in China, and accordingly laid in a large…

Understanding Heat and Temperature

Our sense of touch tells us quite definitely that one body is hot and another cold. But this is a purely quali- tative criterion, not sufficient for a quantitative descrip- tion and sometimes even ambiguous. This is shown by a well-known experiment: we have three vessels con- taining, respectively, cold, warm and hot…

Dictionary of Numbers

A dictionary takes words you're unfamiliar with and puts them in terms you're familiar with. Dictionary of Numbers takes numbers you're unfamiliar with and puts them in terms you can understand. Dictionary of Numbers scans the web pages you visit looking for numbers it can understand. When it finds one, it will give…

Significance

The wisp in my glass on a clear winter’s night Is home for a billion wee glimmers of light, Each crystal itself one faraway dream With faraway worlds surrounding its gleam. And locked in the realm of each tiny sphere Is all that is met through an eye or an ear; Too, all that is felt by a hand or our love, For we are…

Strategy of Predator Satiation

An effective strategy of predator satiation involves two adaptations. First, the synchrony of emergence or reproductions must be very precise, thus assuring that hte market is truly flooded, and only for a short time. Secondly, this flooding cannot occur very often, lest predators simply adjust their own life cycle to…

Geological and Social Impact of the Himalayas

When you look at the planet from low orbit, the impact of the Himalayas on Earth’s climate seems obvious. It creates the rain shadow to beat all rain shadows, standing athwart the latitude of the trade winds and squeezing all the rain out of them before they head southwest, thus supplying eight of the Earth’s…

Dyson Tree

Many species of terrestrial plants, including the skunk cabbage that sprouts in February in the woods of Princeton, New Jersey, where I live, are warm-blooded to a limited extent. For about two weeks the skunk cabbage maintains a warm temperature by rapidly metabolizing starch stored inside the part of its anatomy…

Neem: Cognitive Drug

Neem is a mnemonic drug that works by “tagging” experiences and mental input with a set of unique sensations that contribute to the formation of state-based memories. Neem gummy chews come in a variety of fruit avors shaped like extinct old Earth animals. Neem gives characters a 20 bonus on COG Tests to recall…

Bayes and Richard Price on Predictions

Bayes’s much more famous work, “An Essay toward Solving a Problem in the Doctrine of Chances,”24 was not published until after his death, when it was brought to the Royal Society’s attention in 1763 by a friend of his named Richard Price. It concerned how we formulate probabilistic beliefs about the world when we…