An Engineer Is Building A Sun Reflector
Chris Richard
By outfitting building walls and roadways in dense urban centers with retroreflective materials, which reflect most incoming light directly back to its source, the researchers found that it could be possible to reduce surface temperatures by up to 36F, lower surrounding air temperatures by almost 5F, and cool human skin temperatures by almost a degree Fahrenheit.
Such retroreflective surfaces could be a key strategy for fending off urban heat in dense, high-rise cities like New York, Hong Kong, and Singapore. Working with collaborators from the University of Perugia in Italy, the team published their findings, including guidelines for installing retroreflective surfaces in cities around the globe, on March 11 in Nature Cities.
However, when sunlight hits these cooling technologies, it can bounce off in any number of angles instead of in one focused direction. This lack of control over the direction of the reflected light means that highly reflective materials could backfire if applied to the streets or walls of a dense urban area with tall buildings and comparatively narrow streets.
Retroreflective materials are already used in the transportation sector, where they are commonly found in road signs and paint to enhance nighttime visibility. Other research groups at Princeton are even using retroreflectors to help them pinpoint greenhouse gas leaks. But using retroreflectors for cooling purposes in faade applications is still an evolving area of research.
The present work did not focus on the materials science question of how to engineer the best retroreflector for urban cooling. However, the researchers said their work is among the first to evaluate the potential cooling benefits of the technology at a global scale, moving beyond individual case studies to offer practical insights into how best to implement retroreflective surfaces in cities around the world.
A linear Fresnel reflector is constructed by taking equal width "strips" out of a parabolic mirror and "translating" the "strips" on to a horizontal surface in such a way that all the strips have bases with the same Y coordinate.
A compact linear fresnel reflector superimposes two parabolic mirrors (facing oposing directions) and decomposes them into two sets of alternating, equal width "strips" lying on the same horizontal line.
From the 1982 Popular Science magazine, the article described how he cut the shape and aligned marks placed on the spiral to attach the reflective material to the cross members. As each segment was "pushed" into position, the outside edge lifted at the angle necessary to provide a common focus.
I was a young adult when I purchased the template for this item and did not have the resources to build it. I've long since given up on trying to find the template, although if I did, I'd be building one in a flash. I also recall attempting to contact Mr. Steekblik a number of years ago and having the envelope returned to me, probably using the address shown in the article.
Another "dead-end" link can be found at a solar cooking wiki page. One of the photographs on that site shows clearly the spiral as well as the pairs of mounting holes necessary to accomplish the bend.
The following page is out of date and/or needs to be revised. If the page's guide needs revision, see here for an example.
The revision reason is: "this doc is really big and really scary and there are things that are wrong with it that i dont even realize are wrong yet because thats how big and scary it is. TODO:Update floor tiles icon, update gold icon, update silver icon, update uranium icon, update titanium icon, update diamond icon, reformat pipes page at the bottom to fit with the UI of the rest of the doc."
How to produce Sand:Mine volcanic ash from lavaland ground, and use it in hand to make Sandstone Bricks. Then use the Sandstone in hand to turn it into sand. Can be renewably obtained by using grown grass in your hand to make grass tiles, placing them, and using a shovel or spade on them. Don't ask how that works.
Other kinds of carpet exist, like funky arcade carpets, or garishly beautiful corporate carpets with NT written on them everywhere.Red carpets can be reskinned to have other religious symbols, or star shapes.
This is the standard type of wall found around the station, they are easy to construct and remove but are not as strong as reinforced walls. They also come in a hidden door variety. Walls can also be made out of different minerals. They're useful for:
This is the reinforced type of wall found in secure areas of station, they are reasonably simple to construct, but are very time consuming to remove. They also can be made as a hidden door. They're useful for:
Hitting a normal pane repeatedly with a weapon will smash it into glass shards. Normal windows have 100 integrity (health), while plasma windows have 300. Directional windows have half integrity.
Reinforced windows require a melee item over 11 damage to damage at all, have 150 integrity, and 80 melee armor. This is approximately 1 minute of sustained beating with a toolbox. Reinforced plasma windows require a melee item over 21 damage to damage at all, have 1000 integrity, and 80 melee armor. Breaks down into glass shards and a metal rods. Directional windows have half integrity.
Can be found in every room where someone is supposed to work. The Requests Consoles can be used to request low/high urgency assistance, request supplies with low/high priority, relay anonymous information or view sent and received messages. All of these produce a message to the selected Request Console and can be swiped with an ID to confirm the identity of the sender. Can be hacked to enable the 'EXTREME' priority for your requests.
To create a bounty: Click the bounty board. Click New Bounty. Write your request in the empty field, then set a price in the next field, then click submit. Your name will show up in a list.
To complete someone elses bounty: Click the name of the requester in the bounty board. Click apply. Your name shows up as Requested Applicant. Deliver the item or complete the request of the issuer.
To pay someone for completing your bounty: Open the bounty console. Click your name. Click the little icon next to name of the person who completed your bounty (under Request Applicants). This will pay that person. You can click multiple times to pay extra. Then remove the bounty with DELETE if it is no longer wanted.
Grilles are usually used in combination with directional windows. They allow gases and energy rounds to pass through them, but stop other objects. They can also be electrified for high security areas by building them on top of a live power wire.
This is an angular beam reflector. Any energy projectiles hitting it will be reflected at an angle depending on rotation. There are also "box" reflectors that change the direction of struck projectiles to face a single way, regardless of where they impact the reflector. The supermatter engine uses reflectors to make its emitters' beams go through a single path. Ballistic projectiles will not be reflected!
The Conveyor Belts seen in Cargo, Disposals, and other places around the station can be set up similar to a floor tile, only they require a bit more setting up to become functional. Clicking a placed conveyor belt with an item will put that item on the belt unless it's a wrench, screwdriver, crowbar or you are on Combat Mode Enable with 4, disable with 1 or toggle with F by default. Left-clicking people with an empty hand will Harm them if on, or Help them if off. Prevents you from switching places or being pushed when colliding with people. .
or attack it with a weapon on Combat Mode Enable with 4, disable with 1 or toggle with F by default. Left-clicking people with an empty hand will Harm them if on, or Help them if off. Prevents you from switching places or being pushed when colliding with people. .
Allows you to wash things. Have empty hands and click on sink to wash yourself, or have a tool in hand and click on sink to wash it. If you have nothing in your active hand you will wash your face (if targeting the head, eyes or mouth) or your hands (if targeting anywhere else).
Sinks slowly generate water, up to the max capacity of 100u. Click a sink with a liquid container to fill it with water. Sinks can be connected to a plumbing system to fill them with custom reagents instead of just water.
The HS-451. Installed in the 2550s by the Nanotrasen Hygiene Division. Switch the shower on and off with an empty hand. Use a wrench to adjust the shower water temperature from normal to freezing, from freezing to boiling or from boiling to normal. Use an analyzer to identify the shower's water temperature without risking burns.
Showers slowly generate water, up to the max capacity of 200u. Showers can be connected to a plumbing system to make them spray custom reagents instead of just water. Showering will cause touch reactions.
Airtight and surprisingly durable, shutters can be toggled on and off to open or close them and entirely lock down a tile. In order to link a shutter to a button or other device, you'll need a multitool to edit the identifier for that particular shutter.
A toilet that has been re-purposed to function as an extravagant, high-level, professional smoking device for the weed connoisseur with high standards. Or perhaps you were just high when you came up with this idea.
Chairs are for sitting down and making the place look nice. The only real use for chairs are to restrain people, building electric chairs or to buckle in when the shuttle is about to take off. Office chairs can also be used to move buckled people around.
Closet are among the most common and arguably the most useful of containers on the station. Nearly anything can fit inside, barring other closet, crates, and certain especially large objects like racks and MULEbots.
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