The link I included in my comment goes over driving one in recognizeable notes to play the nokia tune. It's worth a read if this concept interests you.
Fermion
joined 2 years ago
They use piezo buzzers which work differently to most speakers. I would guess that the units used in smoke alarms and microwaves generally have integrated drivers that only operate at a single frequency. However, it is possible to drive piezo discs at different frequencies. Their ouput will always approximate a sound wave though, so don't expect to be able to use them like a normal electrodynamic/ voice coil speaker to play arbitrary sounds.
Not pictured are the Saudis who bankroll Musk and have devoured his free agency.
As far as I know they're mostly harmless, but they will emit an unpleasant smell if disturbed, hence the name. Vacuuming them up works reasonably well.
I dislike them because they put holes in my peaches before they ripen.
Autotrader has a decent filter system. Although, you'll mostly get dealer listed used cars not private sellers.
Not just the UK. There is a coordinated push to use nationalism to replace democracy with oligarchy all across the world right now. The US is simply the most obvious example due to the orange one lacking any semblance of subtlety.
People need to watch for and oppose media consolidation, anti-immigrant rhetoric, ballooning law enforcement spending, surveillance and online id requirements. These are all hallmarks of groups aiming to install an authoritarian regime.
https://en.wikipedia.org/wiki/Shockley%E2%80%93Queisser_limit
Tl:dr The max theoretical efficiency for a silicon solar cell is estimated to be 29.4% with real world high end modules topping out at 26.8%
26% in a lab is not the same as 26% in the field after 5 years, but it is nonetheless a good result.
Solar scales out well, so low conversion effiency isn't really what determines whether an installation is feasible or not.
If you're evaluating cheap 20% efficient panels vs expensive 25% efficiency panels, you need only scale up the area of cheap panels by 25% to match output. Plus, panels that start at a lower efficiency experience less derating over time, so the difference in performance diminishes as an installation ages.
A conviction by the Senate is the only legal way to hold a rogue president accountable. The founding fathers foresaw the branches of government vying for more power, but they did not expect a congress to work with an executive against the interests of the people.
Minor notation quibble: I suspect you were thinking of the hecto prefix. Centimillionaire would imply a net worth of $10k which isn't going to get you the time of day from a republican.
I hope AMD and Intel will recognize the opportunity to maintain their cadence and earn some market share.
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I've thought about this quite a bit and really consider advertising to be a form of assault on attention. The presumption that companies are entitled to our attention without our consent feels like an attack on our own agency.
Before we get to banning advertising though we first need to figure out how to connect people to businesses that have goods and services they actually want to seek out. Word of mouth is great, but it's insufficient. We need some sort of directory. The yellow pages were surprisingly functional, but some modern accessibility and ability to update info is needed. I think the 10,000 pound gorilla in this space is Google maps. However, alphabet is fundamentally an advertising company at this point and prioritizes selling ad placement over user experience. Could organic maps eventually serve as a searchable business directory? I'm not sure. I think any open source initiative would quickly be ruined if companies thought that rigging that system woild get them more customers.
Is a public option viable? I'm not sure. There's a lot of equal access and gatekeeping concerns there. We shouldn't allow obvious scams to be listed, but what's the threshold and who makes that determination? Is someone's Mary Kay mlm a legitimate business or scam? The potential for corruption is very high in an endeavor like this. Imagine if someone is buddies with an administrator and can get their competition completely delisted. Such an endeavor would likely face lots of litigation over claims of unfair treatment.
Many companies I think would be eager to stop paying for advertising if they had a means of connecting to customers that was effective and lower cost, but to achieve this, you're literally trying to compete with the entirety of google/alphabet.