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Which Band of the Electromagnetic Spectrum Do Astronomers Suggest Is

question 32

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Which band of the electromagnetic spectrum do astronomers suggest is likely to be the best (cheap, little competition from nature, penetrates atmospheres) for communication between civilizations around different stars?


Definitions:

Discount Rate

The interest rate used to discount future cash flows to their present value, often utilized in determining an investment's worth.

Future Cash Inflow

Expected receipts of money to a business in the future, which can result from sales, investments, or financing.

Discount Rate

A specific rate used in the method of discounted cash flow analysis for calculating the present value of money flows anticipated in the future.

Net Present Value

The gap between what cash inflows and cash outflows are worth now, calculated over a specified period.

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