Virtual currencies: Sweepstake casinos are powered by virtual currencies called Gold Coins and Sweeps Coins. Available across the U.S.: Sweepstake casinos are legal in 45+ states.
The new Blue Marble silver coin doesn’t weigh as much as the now sold-out Big Silver Maple Leaf coin (which weighs a whopping 10 kg), but at 1 kg, it’s still heavier than the usual assortment of ...
Satellites connect people around the world but they also interfere with astronomers’ views of the cosmos. There are ways to reduce these tensions.
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