Bella, Head of Signals on Earth, needs help interpreting signals picked up by an Earth-based listening station that are different from those detected by the Moon station. She asks staff to analyze the signals to determine if they are real messages from extraterrestrials or an elaborate hoax. There is a 119 character code that has been converted to pictures, and Bella wants conclusions drawn from the pictures about what they mean and how confident one can be in the conclusions.
To understand electromancy, one must learn about electric current, which can be measured using a device called an ammeter tell tale. To measure current, remove an existing wire and replace it with the ammeter tell tale, ensuring the current passes through the ammeter. Later, students should investigate a circuit, measuring how electric current affects the brightness of a light bulb and reporting their findings.
The document discusses an electromancer's quest to answer a question by planning a good quest and learning from examples of both good and bad planning. It mentions using a spark stream and creating a catching power for a wiry serpent device, providing a faded diagram. The student is urged to make a chart recording ideas for the minimum spark stream and number of turns before ideas are lost, and a graph is suggested to be helpful.
The document discusses decoding a potential message from space and convincing others it is not a hoax. It mentions selecting signals to analyze carefully and choosing a part of the sky to listen to. The document also provides instructions to tell journalists how the message was found, where it comes from, what it says, and why it is believed to not be a hoax.
The document discusses several experiments involving magnets:
1) Using a compass to map the magnetic field pattern around a magnet and determine where the magnetic effects are strongest.
2) Testing whether various materials can shield or block a magnet's magnetic field by wrapping them around a magnet.
3) Magnetizing a piece of steel by stroking it with a permanent magnet and testing the magnetic strength based on the number of strokes and items it can pick up.
Bella, Head of Signals on Earth, needs help interpreting signals picked up by an Earth-based listening station that are different from those detected by the Moon station. She asks staff to analyze the signals to determine if they are real messages from extraterrestrials or an elaborate hoax. There is a 119 character code that has been converted to pictures, and Bella wants conclusions drawn from the pictures about what they mean and how confident one can be in the conclusions.
To understand electromancy, one must learn about electric current, which can be measured using a device called an ammeter tell tale. To measure current, remove an existing wire and replace it with the ammeter tell tale, ensuring the current passes through the ammeter. Later, students should investigate a circuit, measuring how electric current affects the brightness of a light bulb and reporting their findings.
The document discusses an electromancer's quest to answer a question by planning a good quest and learning from examples of both good and bad planning. It mentions using a spark stream and creating a catching power for a wiry serpent device, providing a faded diagram. The student is urged to make a chart recording ideas for the minimum spark stream and number of turns before ideas are lost, and a graph is suggested to be helpful.
The document discusses decoding a potential message from space and convincing others it is not a hoax. It mentions selecting signals to analyze carefully and choosing a part of the sky to listen to. The document also provides instructions to tell journalists how the message was found, where it comes from, what it says, and why it is believed to not be a hoax.
The document discusses several experiments involving magnets:
1) Using a compass to map the magnetic field pattern around a magnet and determine where the magnetic effects are strongest.
2) Testing whether various materials can shield or block a magnet's magnetic field by wrapping them around a magnet.
3) Magnetizing a piece of steel by stroking it with a permanent magnet and testing the magnetic strength based on the number of strokes and items it can pick up.
2. Определение Многогранник называется правильным, если - он выпуклый - все его грани являются равными правильными многоугольниками - в каждой его вершине сходится одинаковое число граней - все его двухгранные углы равны
12. Додека́эдр - ( от греч. dodeka — двенадцать и hedra — грань) двенадцатигранник , составленный из двенадцати правильных пятиугольников . Каждая вершина додекаэдра является вершиной трёх правильных пятиугольников.
14. Икосаэдр (от греч . εικοσάς , «двадцать» и греч . -εδρον , «грань», «лицо», «основание ») — двадцатигранник . Каждая из 20 граней представляет собой равносторонний треугольник . Число ребер равно 30, число вершин — 12.