From the radiation data of past space missions (above), what concerns should future astronauts have about living in space for long periods of time? (Support your answers with data from chart and content from the lesson.)

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From the radiation data of past space missions (above), what concerns should
future astronauts have about living in space for long periods of time?
(Support your answers with data from chart and content from the lesson.)

 

**The Electromagnetic Spectrum: Understanding Wavelengths**

The electromagnetic spectrum encompasses a range of radiation types that vary by wavelength in meters. Here’s the breakdown from longer to shorter wavelengths:

1. **Radio Waves**:
   - **Wavelength**: Greater than \(1 \, \text{m}\).
   - Covering a broad range, radio waves are the longest and have the least energy.
   - Typical Size Comparison: About the size of buildings.

2. **Microwaves**:
   - **Wavelength**: \(10^{-3}\) to \(10^{-1} \, \text{m}\).
   - Employed in various applications like radar technology and in microwave ovens.
   - Typical Size Comparison: About the size of grains of sugar.

3. **Infrared Waves**:
   - **Wavelength**: \(10^{-6}\) to \(10^{-3} \, \text{m}\).
   - Infrared radiation is commonly associated with heat.
   - Typical Size Comparison: About the size of protozoans.

4. **Visible Light**:
   - **Wavelength**: \(0.4 \times 10^{-6}\) to \(0.8 \times 10^{-6} \, \text{m}\).
   - This is the range that is visible to the human eye and encapsulates all colors from violet to red.
   - Typical Size Comparison: About the size of bacteria.

5. **Ultraviolet Light**:
   - **Wavelength**: \(10^{-8} \) to \(3 \times 10^{-7} \, \text{m}\).
   - Contains more energy than visible light and can cause skin burns.
   - Typical Size Comparison: About the size of molecules.

6. **X-Rays**:
   - **Wavelength**: \(10^{-10}\) to \(10^{-8} \, \text{m}\).
   - These wavelengths are utilized in medical imaging due to their ability to penetrate tissues.
   - Typical Size Comparison: About the size of atoms.

7. **Gamma Rays**:
   - **Wavelength**: Less than \(10^{-12} \, \text{m}\).
   - These waves have the shortest wavelength and the highest energy.
   - Typical Size Comparison: About the size of atomic nuclei.

**Radiation Classification**:

- **Non-Ionizing Radiation**
Transcribed Image Text:**The Electromagnetic Spectrum: Understanding Wavelengths** The electromagnetic spectrum encompasses a range of radiation types that vary by wavelength in meters. Here’s the breakdown from longer to shorter wavelengths: 1. **Radio Waves**: - **Wavelength**: Greater than \(1 \, \text{m}\). - Covering a broad range, radio waves are the longest and have the least energy. - Typical Size Comparison: About the size of buildings. 2. **Microwaves**: - **Wavelength**: \(10^{-3}\) to \(10^{-1} \, \text{m}\). - Employed in various applications like radar technology and in microwave ovens. - Typical Size Comparison: About the size of grains of sugar. 3. **Infrared Waves**: - **Wavelength**: \(10^{-6}\) to \(10^{-3} \, \text{m}\). - Infrared radiation is commonly associated with heat. - Typical Size Comparison: About the size of protozoans. 4. **Visible Light**: - **Wavelength**: \(0.4 \times 10^{-6}\) to \(0.8 \times 10^{-6} \, \text{m}\). - This is the range that is visible to the human eye and encapsulates all colors from violet to red. - Typical Size Comparison: About the size of bacteria. 5. **Ultraviolet Light**: - **Wavelength**: \(10^{-8} \) to \(3 \times 10^{-7} \, \text{m}\). - Contains more energy than visible light and can cause skin burns. - Typical Size Comparison: About the size of molecules. 6. **X-Rays**: - **Wavelength**: \(10^{-10}\) to \(10^{-8} \, \text{m}\). - These wavelengths are utilized in medical imaging due to their ability to penetrate tissues. - Typical Size Comparison: About the size of atoms. 7. **Gamma Rays**: - **Wavelength**: Less than \(10^{-12} \, \text{m}\). - These waves have the shortest wavelength and the highest energy. - Typical Size Comparison: About the size of atomic nuclei. **Radiation Classification**: - **Non-Ionizing Radiation**
**Title: Duration of Lunar Surface Activity and Radiation Exposure for Apollo Missions**

The table below illustrates the amount of time astronauts spent on the surface of the Moon during each lunar landing and the average radiation dose they received.

| **Mission** | **Total Duration**         | **Lunar Surface Duration** | **Average Radiation Dose*** |
|-------------|-----------------------------|----------------------------|-----------------------------|
| Apollo 11   | 08 days, 03 hrs, 13 mins    | 21 hrs, 38 mins            | 0.18 rad                    |
| Apollo 12   | 10 days, 4 hrs, 31 mins     | 31 hrs, 31 mins            | 0.58 rad                    |
| Apollo 14   | 09 days, 01 min             | 33 hrs, 31 mins            | 1.14 rad                    |
| Apollo 15   | 10 days, 01 hr, 11 mins     | 66 hrs, 54 mins            | 0.30 rad                    |
| Apollo 16   | 11 days, 01 hr, 51 mins     | 71 hrs, 2 mins             | 0.51 rad                    |
| Apollo 17   | 12 days, 13 hrs, 51 mins    | 74 hrs, 59 mins            | 0.55 rad                    |

*Note: Average radiation dose information can be found on the Life Sciences Data Archive at JSC.

This table provides crucial data for understanding both the time exposure and potential risks astronauts face during lunar missions. The "Total Duration" column includes the entire mission duration from launch to return, whereas the "Lunar Surface Duration" exclusively measures the time spent on the Moon. The "Average Radiation Dose" captures the average radiation exposure in rads, which is vital for assessing astronaut safety and mission planning.
Transcribed Image Text:**Title: Duration of Lunar Surface Activity and Radiation Exposure for Apollo Missions** The table below illustrates the amount of time astronauts spent on the surface of the Moon during each lunar landing and the average radiation dose they received. | **Mission** | **Total Duration** | **Lunar Surface Duration** | **Average Radiation Dose*** | |-------------|-----------------------------|----------------------------|-----------------------------| | Apollo 11 | 08 days, 03 hrs, 13 mins | 21 hrs, 38 mins | 0.18 rad | | Apollo 12 | 10 days, 4 hrs, 31 mins | 31 hrs, 31 mins | 0.58 rad | | Apollo 14 | 09 days, 01 min | 33 hrs, 31 mins | 1.14 rad | | Apollo 15 | 10 days, 01 hr, 11 mins | 66 hrs, 54 mins | 0.30 rad | | Apollo 16 | 11 days, 01 hr, 51 mins | 71 hrs, 2 mins | 0.51 rad | | Apollo 17 | 12 days, 13 hrs, 51 mins | 74 hrs, 59 mins | 0.55 rad | *Note: Average radiation dose information can be found on the Life Sciences Data Archive at JSC. This table provides crucial data for understanding both the time exposure and potential risks astronauts face during lunar missions. The "Total Duration" column includes the entire mission duration from launch to return, whereas the "Lunar Surface Duration" exclusively measures the time spent on the Moon. The "Average Radiation Dose" captures the average radiation exposure in rads, which is vital for assessing astronaut safety and mission planning.
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