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User talk:Daveb: Difference between revisions
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|'''Quiet boxed PCs''' || project || I want to run more than one PC, and the droning gets to me :( [http://wiki.london.hackspace.org.uk/view/Project:QuietBoxedPCs Project: Quiet Boxed PCs] | |'''Quiet boxed PCs''' || project || I want to run more than one PC, and the droning gets to me :( [http://wiki.london.hackspace.org.uk/view/Project:QuietBoxedPCs Project: Quiet Boxed PCs] | ||
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==Project Ideas== | ==Project Ideas== | ||
{|border="1" cellpadding="5" cellspacing="0" |'''Make solar cell?'''|| idea || Link http://www.freewebs.com/acselectronics/TiO2solar.html | {|border="1" cellpadding="5" cellspacing="0" | ||
|'''Project''' || '''Status''' || '''Notes''' | |||
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|'''Make solar cell?'''|| idea || Link http://www.freewebs.com/acselectronics/TiO2solar.html | |||
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|'''Safe by design nuclear'''|| meme || [http://www.youtube.com/watch?v=P9M__yYbsZ4 2 hour promo] | |'''Safe by design nuclear'''|| meme || [http://www.youtube.com/watch?v=P9M__yYbsZ4 2 hour promo] | ||
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==Crazy Ideas== | ==Crazy Ideas== | ||
{|border="1" cellpadding="5" cellspacing="0" | {|border="1" cellpadding="5" cellspacing="0" | ||
|'''Project''' || '''Status''' || '''Notes''' | |||
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|'''prime number generator'''|| thought || Invert the sieve of Aristophanes, so the data structure holds primes and the next multiple of each prime. Keep the data-structure sorted by the next multiple. When a gap occurs between the current nearest multiple and the next nearest the gap contains prime number(s). | |'''prime number generator'''|| thought || Invert the sieve of Aristophanes, so the data structure holds primes and the next multiple of each prime. Keep the data-structure sorted by the next multiple. When a gap occurs between the current nearest multiple and the next nearest the gap contains prime number(s). | ||
The algorithm requires sorting subsequent multiples into place. | The algorithm requires sorting subsequent multiples into place. | ||
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==Dumb Ideas== | ==Dumb Ideas== | ||
{|border="1" cellpadding="5" cellspacing="0" | {|border="1" cellpadding="5" cellspacing="0" | ||
|'''Project''' || '''Status''' || '''Notes''' | |||
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|'''mirrored coils'''|| reinventing the wheel; already exists as a [http://en.wikipedia.org/wiki/Choke_%28electronics%29#Common-mode_choke ''Common mode choke''] || wind two coils on the same core, one left hand the other right hand and link them together. I think they should act as a filter of some sort, because the emf generated by the first travels faster than the electrons and reinforces the current in the other coil, smoothing out the edges of each pulse. The filter frequency being related to the speed of light and electrons in copper and the coil winding length. Maybe there would be less energy lost in the filter? | |'''mirrored coils'''|| reinventing the wheel; already exists as a [http://en.wikipedia.org/wiki/Choke_%28electronics%29#Common-mode_choke ''Common mode choke''] || wind two coils on the same core, one left hand the other right hand and link them together. I think they should act as a filter of some sort, because the emf generated by the first travels faster than the electrons and reinforces the current in the other coil, smoothing out the edges of each pulse. The filter frequency being related to the speed of light and electrons in copper and the coil winding length. Maybe there would be less energy lost in the filter? | ||
I need to learn some maths so I can understand the wiki explanation. | I need to learn some maths so I can understand the wiki explanation. | ||
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==Completed projects== | |||
{|border="1" cellpadding="5" cellspacing="0" | |||
|'''Project''' || '''Status''' || '''Notes''' | |||
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|'''Lowered Desk'''|| complete || Comfort requires a good desk:). [http://wiki.london.hackspace.org.uk/view/Project:Lowered_Desk Project:Lowered Desk] | |||
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==Project Status== | ==Project Status== | ||
See [http://wiki.london.hackspace.org.uk/view/Project:SpeedAdjustableBikeLight Speed Adjustable Bike Light] | See [http://wiki.london.hackspace.org.uk/view/Project:SpeedAdjustableBikeLight Speed Adjustable Bike Light] | ||
