Another possibility might be working on lower loss, high capacity transmission lines (or methods), and bridge the various grids to move solar generated power to the darkened parts of the country and possibly planet. A global electrical network with multiple redundancies could help stall many power crises and reduce loss from current storage methods.
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I disagree, perhaps letting them know that it's okay for them to move on with their lives, even if it means not watching later videos/opening future letters. My wife has made it clear that if she passes early she wants me to remarry, for our children. If I were in your situation I would remind them in each message not to dwell on the past, but to feel free to move forward. Tell them that you have made these messages not as a way to tie them to you, but to stand behind them during the important and often difficult times.
As (I hope) others may have said, make sure you also make some videos for your wife. Help her to be the best Mom she can be. Help her to know what qualities you loved about her. Help build her up, so that she can be there for your daughter when you cannot. Birthdays and anniversaries will likely be the hardest, planned some timed messages for then. I don't know about your religious views, but I believe strongly that the bonds of marriage can last beyond death.
When you have to leave a job or project that you love, you give your all to make sure that it will continue well after you leave. A family is the greatest project any of us will be a part of, and with you passing away your wife will be the sole top administrator. Give her tools for that bad times, when she'll not feel up to the task. Encourage her, let her know that she is wonderful and completely capable. Let her know your approval, gratitude, and love for her.
People (and service animals) will need to get used to silent cars - that is not going to happen until silent cars are ubiquitous, which is certainly not true now. There is nothing ridiculous about mandating some amount of noise in the meantime.
How are silent cars supposed to become ubiquitous if the law mandates that they cannot be silent?
It was doing what it was programmed to do! What do you think a human being would be to a robot anyway, if not other moving objects it has to keep out of a hole?
Wait, are we talking about robotic contraceptive devices?
Ionizing radiation from the flare could cause HF radio blackouts and other communications disturbances, especially on the day-lit side of Earth. In the next few hours, when coronagraph data from SOHO and STEREO become available, we will see if a CME emerges from the blast site. If so, the cloud would likely be aimed directly at Earth and could reach our planet in 2 to 3 days."
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