Vacuum cleaners may be seen as a stodgy old appliance that does not change much, but there have been advancements in the last several years that make vacuuming easier and more enjoyable as well as more effective. The most innovative changes have come from Dyson. Today's vacuums run cleaner than those in the past (less dust in the air), and are more powerful to grab pet hair and dirt that older vacuums could not pull out of a carpet.
Bagless Upright Vacuums - Many of the newest vacuums are bagless. This means that you do not have to buy bags. With a bagless vacuum, you empty the dirt and dust directly into into your trash can and you are ready to go. This innovation has been available for quite a while. The latest bagless vacuums allow you to empty your dirt container with the press of a button (so you don't have to handle the dirt). Dyson Bagless Vacuums empty at the bottom of the dirt container for easy disposal.
Sealed Canister Vacuums - Miele bagged canister vacuums are sealed to prevent dust from escaping, and have self sealing bags that close up when removed from the vacuum, eliminating your having to be exposed to the dust and dirt in those bags.
Ball Upright Vacuums - This is the latest type of vacuum which was introduced by Dyson. Instead of wheels, the Dyson uses a ball in the front of the vacuum making it much more maneuverable than traditional vacuums. To our knowledge, only Dyson has this type of vacuum.
Quiet Vacuums - Most vacuums are pretty loud and can scare pets. Electrolux makes an ultra quiet canister model, the EL6985a. Miele's entire line of canister models are sealed and made for quiet performance.
Cyclonic Vacuums - This technology (available on all Dyson uprights) separates the dirt and debris from the air before it meets the filter. This keeps the filter from clogging. Clogged filters are a big problem, especially when dealing with pet hair. Cyclonic vacuums can be more powerful since an unclogged filter allows for more suction.
Direct Drive Motors - Most upright vacuums have one motor that drives the compressor for suction, and with a belt drives the beater bar. Using a separate motor for the brush makes the vacuum beltless, so you don't need to replace belts. Many Dyson vacuums are beltless.
Hepa Filtration - Many vacuums have Hepa filters which get rid of dirt and dust out of the exhaust air. Many older vacs spew out dirt and dust in the air when vacuuming. This feature is important for allergy sufferers and those that don't want to inhale what was in the rug.
Dirt Sensor - Some vacuums have a dirt sensor that detects when the vacuum is no longer picking up dirt, so you know when to move on to another area of the carpet.
As you can see there are many new features of vacuums to consider. You need to determine which technologies are important to you before choosing the best vacuum for your needs. Reading reviews of these vacuums can give you an idea of how others have used them in real world situations. Low end vacuums usually do not have many of these advanced features.
Mass would have no gravity, it would only shield the anti-gravity of the vacuum. Wouldn't this produce what we see via experiment as well? You'd get orbits because the vacuum would push objects around the shielded "holes" where there was no anti-gravity. You are not pulled by the earth, but pushed into it by the vacuum. Wouldn't this also explain the expansion of the universe? Wouldn't this help explain black hole infinities too? Instead of having infinite gravity at the singularity, they just have 100% shielding. What if you could change the properties of matter so that it no longer shields that anti-gravity? Wouldn't it become neutrally bouyant in the gravity well and require no force to maintain a given height? jludvig: No...I can't do it. I don't like math. I just float the ideas and wait for someone to carry it to it's logical conclusion. I'm sure there is some obvious reason why this can't work but I don't know what it is.
Answer
Now all you have to do is to pour your thoughts into a mathematical theory which can predict the orbits of planets, black hole, neutron stars and hopefully dark matter/dark energy, publish it and wait for the Nobel prize in physics to be awarded to you. I am not kidding... if you can come up with a novel way to describe gravity, you will be the most famous physicist of the 21st century.
General relativity does such an excellent job predicting the behavior of gravity that we are still struggling to find a physical system which violates it numerically. So your idea is in for a tough time because it has to reproduce this excellent fit to reality. Do you think you can do that?
Good luck!

Vacuum cleaners may be seen as a stodgy old appliance that does
not change much, but there have been advancements in the last
several years that make vacuuming easier and more enjoyable as
well as more effective. The most innovative changes have come
from Dyson. Today's vacuums run cleaner than those in the past
(less dust in the air), and are more powerful to grab pet hair
and dirt that older vacuums could not pull out of a carpet.
Bagless Upright Vacuums - Many of the newest vacuums are
bagless. This means that you do not have to buy bags. With a
bagless vacuum, you empty the dirt and dust directly into into
your trash can and you are ready to go. This innovation has
been available for quite a while. The latest bagless vacuums
allow you to empty your dirt container with the press of a
button (so you don't have to handle the dirt). Dyson Bagless
Vacuums empty at the bottom of the dirt container for easy
disposal.
Sealed Canister Vacuums - Miele bagged canister vacuums are
sealed to prevent dust from escaping, and have self sealing
bags that close up when removed from the vacuum, eliminating
your having to be exposed to the dust and dirt in those
bags.
Ball Upright Vacuums - This is the latest type of vacuum which
was introduced by Dyson. Instead of wheels, the Dyson uses a
ball in the front of the vacuum making it much more
maneuverable than traditional vacuums. To our knowledge, only
Dyson has this type of vacuum.
Quiet Vacuums - Most vacuums are pretty loud and can scare
pets. Electrolux makes an ultra quiet canister model, the
EL6985a. Miele's entire line of canister models are sealed and
made for quiet performance.
Cyclonic Vacuums - This technology (available on all Dyson
uprights) separates the dirt and debris from the air before it
meets the filter. This keeps the filter from clogging. Clogged
filters are a big problem, especially when dealing with pet
hair. Cyclonic vacuums can be more powerful since an unclogged
filter allows for more suction.
Direct Drive Motors - Most upright vacuums have one motor that
drives the compressor for suction, and with a belt drives the
beater bar. Using a separate motor for the brush makes the
vacuum beltless, so you don't need to replace belts. Many Dyson
vacuums are beltless.
Hepa Filtration - Many vacuums have Hepa filters which get rid
of dirt and dust out of the exhaust air. Many older vacs spew
out dirt and dust in the air when vacuuming. This feature is
important for allergy sufferers and those that don't want to
inhale what was in the rug.
Dirt Sensor - Some vacuums have a dirt sensor that detects when
the vacuum is no longer picking up dirt, so you know when to
move on to another area of the carpet.
As you can see there are many new features of vacuums to
consider. You need to determine which technologies are
important to you before choosing the best vacuum for your
needs. Reading reviews of these vacuums can give you an idea of
how others have used them in real world situations. Low end
vacuums usually do not have many of these advanced features.
Mass would have no gravity, it would only shield the anti-gravity of the vacuum. Wouldn't this produce what we see via experiment as well? You'd get orbits because the vacuum would push objects around the shielded "holes" where there was no anti-gravity. You are not pulled by the earth, but pushed into it by the vacuum. Wouldn't this also explain the expansion of the universe? Wouldn't this help explain black hole infinities too? Instead of having infinite gravity at the singularity, they just have 100% shielding. What if you could change the properties of matter so that it no longer shields that anti-gravity? Wouldn't it become neutrally bouyant in the gravity well and require no force to maintain a given height? jludvig: No...I can't do it. I don't like math. I just float the ideas and wait for someone to carry it to it's logical conclusion. I'm sure there is some obvious reason why this can't work but I don't know what it is.
Answer
Now all you have to do is to pour your thoughts into a
mathematical theory which can predict the orbits of planets,
black hole, neutron stars and hopefully dark matter/dark
energy, publish it and wait for the Nobel prize in physics to
be awarded to you. I am not kidding... if you can come up with
a novel way to describe gravity, you will be the most famous
physicist of the 21st century. General relativity does such an
excellent job predicting the behavior of gravity that we are
still struggling to find a physical system which violates it
numerically. So your idea is in for a tough time because it has
to reproduce this excellent fit to reality. Do you think you
can do that? Good luck!