a tub of blocks

Wood Tubing Blocks

I needed a set of blocks to hold bicycle tubing in my vise. These blocks allow you to hold thin wall tubing securely without denting or marring them.

I chose to make 7 blocks. One longer block with three different tubing sizes and 6 blocks with one tubing size each. I chose sizes based on common bicycle tubing diameters.
I created blocks for holding these diameters of tubing:
1/2″ or 12.7mm
5/8″ or 15.9mm
3/4″ or 19mm
7/8″ or 22.2mm
1″ or 25.4mm
1 1/8″ or 28.6mm
1 1/4″ or 31.8mm
1 3/8″ or 34.9mm
1 1/2″ or 38.1mm

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Step 1: Materials

I chose to use a harder wood for durability. I used some maple scrap a friend had lying around. I started by planing/joining the wood in to a 3×3″ plank. I then used a chop saw to cut the plank in to 6 3x3x3″ cubes and one 3×4.5″ rectangular piece.

Step 2: Drill the Holes

After I had 3x3x3″ cubes and a 3x3x4.5″ block I got ready to drill some holes. In order to keep the blocks as strong as possible it is best to drill the holes perpendicular to or through the grain. This will prevent the blocks from cracking when you clamp the tubing in them. I marked the center of each of the 6 cubes on the face grain. For the the rectangular chunk I marked the centerline and spaced three marks evenly across the piece. I used Forstner bits to drill clean, uniform holes.

Step 3:

After drilling holes I cut the blocks in half. I set the fence on the band saw to 1.5″ (half the blocks width) from the blade and passed each block through. Cutting the blocks after you have drilled the holes has an added benefit. The kerf (or width of the blade) removes some material. This removed material makes it so the blacks will fit tight on the tubing. With a tube in the block the two wood sides of the block won’t actually touch, the kerf should provide enough gap so the pressure is on the tubing, holding it firmly. Alternatively you could cut all your blocks in half first then clamp them together with some sort of spacer (like playing cards) before drilling them. If you don’t have a ban saw and have to make your cuts with a wider kerfed blade it would probably be better to use the cut then drill method.

Step 4: Mark Your Blocks

To keep the blocks easy to identify I decide to label them. Because bicycle tubing is often referred to in many ways I decided to include fractional, decimal and metric measurements on my blocks. I used a laser cutter for clear, clean, permanent marks.

Definition of tube in English:

1 A long, hollow cylinder of metal, plastic, glass, etc. for holding or transporting something, chiefly liquids or gases.

  • ‘A straw itself will not hold up well to this experiment, so see if you can get a tube of glass or plastic.’
  • ‘The idea is to use the plasma coating to line catheters — plastic tubes surgically inserted into the body so patients can rid themselves of waste products from the blood through a dialysis machine.’
  • ‘Catheters — small plastic tubes — are inserted into veins in the arm or leg to access the heart for procedures such as angioplasties and stent placements.’
  • ‘Root growth is observed daily through the transparent plastic tubes.’
  • ‘A plastic tube is inserted in the nostril and down into the stomach.’
  • ‘He punctured my eardrum, drained the fluid and inserted a plastic tube.’
  • ‘Anaesthesia usually begins when the anaesthetist injects a drug through a fine plastic tube inserted into a vein in the back of the hand.’
  • ‘The root system was submerged in nutrient solution, and a plastic tube was connected to the cut end of the stem to collect the fluid.’
  • ‘To perform this experiment a little oil of turpentine was placed at the bottom of a glass tube surrounded with boiling liquid air.’
  • ‘This metal tip transfers your body heat to the liquid inside the glass tube.’
  • ‘He was going to do a tracheotomy, opening the throat and inserting a tube into the windpipe.’
  • ‘There were also racks of smaller tubes filled with clear and purple liquids and jars of empty plastic tubes.’
  • ‘In other news, Junior is feeding so well that he is free of plastic tubes.’
  • ‘From it emerges a plastic tube with a mask that fits over my nose.’
  • ‘The radiologist connects a barium bag to the tube to deliver liquid barium into your colon.’
  • ‘Stock should be watered weekly; this can be facilitated by attaching a perforated tube to the end of a hose and inserting the tube into the bundles.’
  • ‘Kim pulled out a small glass tube with liquid inside.’
  • ‘This effect can also be seen when a liquid is in a tube such as a measuring cylinder.’
  • ‘One end of the tube is connected to the cylinder, and its heat lights the fuel.’
  • ‘The samples were stored refrigerated in plastic tubes without preservatives until further processing within 24 hours.’
  1. 1.1 The inner tube of a bicycle tyre.
  • ‘He had also had many requests for new tyres and tubes and other bicycle parts.’
  • ‘The shape can be chubbier — more like a truck tire than a bicycle tube — which lowers the cost for a given plasma volume.’
  • ‘They specialize in refurbishing tubular tires with new tubes.’
  • ‘With theserims you can ride regular tubes and tyres and reduce rolling weight by up to 5lbs!’
  • ‘So I’m 12 miles from home, with no spare tubes, a blown tyre, and no way of fixing it.’
  • ‘Barring the tyres and tubes, each part of his cycle, the valve, piston etc, was made of bamboo.’
  • ‘Tyres and tubes were rationed but could be purchased on the black market at exorbitant prices.’
  • ‘I then spent ten minutes changing the tube in my front tyre and looking faintly sheepish.’
  • ‘I’d like to know the advantage of using tubeless tires and why one would use tubes with tubeless tires.’
  • ‘Both tires off and new mountain bike tubes are put on.’
  • ‘It ends up looking like some kind of snarling bicycle tube.’
  • ‘It is especially common with tall bikes, particularly ones with small-diameter tubes.’
  • ‘Also be sure to plan ahead for potential damage to your bike, whether it’s a pinched tube or something else entirely.’
  • ‘Mount the new tire on any standard MTB wheel or rim you have around, using a tube.’
  • ‘By mid-1931, Stanley launched a line of garden tools manufactured with all steel tube handles and stampings.’
  • ‘The fuselage was built out of welded chrome-molybdenum steel tube with rod bracing and fabric covering.’
  • ‘Two wide wing bracing struts were built from steel tube and balsa wood and fabric covered.’
  • ‘The design was interesting in the fact it utilized steel tube spars in the tapered wings and a plywood — covered fuselage.’
  • ‘Wing construction comprised two spruce spars with plywood ribs and steel tube and wire drag bracing.’
  • ‘The stools are made of mild steel sheet and tube using a construction method called spinning.’
  • ‘If weight continued to be an issue, it would be possible to substitute-aluminum tube for steel at the cross members or in the main frame rails.’
  • ‘Construction is ingenious and apt, with social areas in balloon frame, and steel tube columns in the pool space.’
  • ‘The fuselage was of welded steel tube truss construction and was quite stout.’
  • ‘This plane had a welded steel tube fuselage which became the industry standard.’
  • ‘The helicopter has steel tube skid type landing gear.’
  • ‘Some had crudely welded steel tube frames and rudimentary suspensions.’
  • ‘Finally a small length of silicone tube locks the helicopter bead and tubing to the lower swivel of our up-trace.’
  • ‘The fuselage was steel tube with fabric and aluminum covering while the tail was welded steel tubing with fabric covering.’
  • ‘Black tube steel was sourced from local foundries, together with telegraph poles and guy wires which were donated by a power supplier.’

2 A thing in the form of or resembling a tube.

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How to make a Dead Tube Coral Block in Minecraft

This Minecraft tutorial explains how to craft a dead tube coral block with screenshots and step-by-step instructions.

In Minecraft, a dead tube coral block is an item that you can not make with a crafting table or furnace. Instead, you need to find and gather this item in the game.

Let’s explore how to add a dead tube coral block to your inventory.

Supported Platforms

A dead tube coral block is available in the following versions of Minecraft:

Platform Supported (Version*)
Java Edition (PC/Mac) Yes (1.13)
Pocket Edition (PE) Yes (1.4.0)
Xbox 360 Yes (TU69)
Xbox One Yes (1.4.0)
PS3 Yes (1.76)
PS4 Yes (1.76)
Wii U Yes (Patch 38)
Nintendo Switch Yes (1.5.0)
Windows 10 Edition Yes (1.4.0)
Education Edition Yes (1.4.0)

* The version that it was added or removed, if applicable.
NOTE: Pocket Edition (PE), Xbox One, Nintendo Switch, and Windows 10 Edition are now called Bedrock Edition. We will continue to show them individually for version history.

Where to find a Dead Tube Coral Block in Creative Mode

  • Java
  • PE
  • Xbox
  • PS
  • Nintendo
  • Win10
  • Edu

Minecraft Java Edition (PC/Mac)

Here is where you can find a dead tube coral block in the Creative Inventory menu:

Platform Version(s) Creative Menu Location
Java Edition (PC/Mac) 1.13 — 1.15 Building Blocks

Minecraft Pocket Edition (PE)

Here is where you can find a dead tube coral block in the Creative Inventory menu:

Platform Version(s) Creative Menu Location
Pocket Edition (PE) 1.4.0 — 1.13.0 Nature

Minecraft Xbox Editions

Here is where you can find a dead tube coral block in the Creative Inventory menu:

Platform Version(s) Creative Menu Location
Xbox 360 TU69 Decorations
Xbox One 1.4.0 — 1.13.0 Nature

Minecraft PS Editions

Here is where you can find a dead tube coral block in the Creative Inventory menu:

Platform Version(s) Creative Menu Location
PS3 1.76 Decorations
PS4 1.76 — 1.91 Decorations

Minecraft Nintendo

Here is where you can find a dead tube coral block in the Creative Inventory menu:

Platform Version(s) Creative Menu Location
Wii U Patch 38 Decorations
Nintendo Switch 1.5.0 — 1.13.0 Nature

Minecraft Windows 10 Edition

Here is where you can find a dead tube coral block in the Creative Inventory menu:

Platform Version(s) Creative Menu Location
Windows 10 Edition 1.4.0 — 1.13.0 Nature

Minecraft Education Edition

Here is where you can find a dead tube coral block in the Creative Inventory menu:

Platform Version(s) Creative Menu Location
Education Edition 1.4.0 — 1.12.0 Nature

Definitions

  • Platform is the platform that applies.
  • Version(s) is the Minecraft version numbers where the item can be found in the menu location listed (we have tested and confirmed this version number).
  • Creative Menu Location is the location of the item in the Creative menu.

How to get a Dead Tube Coral Block in Survival Mode

You can add a dead tube coral block to your inventory in Survival mode by finding living Tube Coral Blocks growing in a Warm Ocean biome and mining them with a pickaxe. So, let’s get started!

1. Find a Tube Coral Block

First, you need to find a tube coral block in your Minecraft world. A tube coral block is a blue coral that is usually found growing underwater in the Warm Ocean biome.

This is what a tube coral block looks like:

2. Hold a Pickaxe

To mine a tube coral block, you need to dig up the tube coral block with a pickaxe. These are the pickaxes you can choose from.

If you try to mine the tube coral block with your hand or other tool (that is not a pickaxe), the small block of dead tube coral will not appear. And you will not be able to add the dead tube coral block to your inventory.

In this example, we are going to use a diamond pickaxe to mine the tube coral block.

3. Mine the Tube Coral Block

The game control to mine the tube coral block depends on the version of Minecraft:

  • For Java Edition (PC/Mac), left click and hold on the tube coral block.
  • For Pocket Edition (PE), you tap and hold on the tube coral block.
  • For Xbox 360 and Xbox One, press and hold the RT button on the Xbox controller.
  • For PS3 and PS4, press and hold the R2 button on the PS controller.
  • For Wii U, press and hold the ZR button on the gamepad.
  • For Nintendo Switch, press and hold the ZR button on the controller.
  • For Windows 10 Edition, left click and hold on the tube coral block.
  • For Education Edition, left click and hold on the tube coral block.

You will need to continue to mine until the tube coral block breaks and a smaller dead tube coral block appears floating in the water. If you wait too long, the dead tube coral block will float to the top of the water.

4. Pick up the Dead Tube Coral Block

Make sure you pick up the dead tube coral block before it disappears.

Once you pick up the dead tube coral block, it will appear in your hotbar.

A dead tube coral block is a useful item and should be kept in your inventory to be used later.

Item >
  • Java
  • PE
  • Xbox
  • Nintendo
  • Win10
  • Edu

Minecraft Java Edition (PC/Mac)

In Minecraft, a dead tube coral block has the following Name, ID and DataValue:

Item Description
(Minecraft ID Name)
Minecraft
ID
Minecraft
Data
Value
Platform Version (s)
Dead Tube Coral Block
(minecraft: dead_ tube_ coral_ block)
Java Edition (PC/Mac) 1.13 — 1.15

See a complete list of Minecraft IDs that is interactive and searchable.

Minecraft Pocket Edition (PE)

In Minecraft, a dead tube coral block has the following Name, ID and DataValue:

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Item Description
(Minecraft ID Name)
Minecraft
ID
Minecraft
Data
Value
Platform Version (s)
Dead Tube Coral Block
(minecraft: coral_ block)
5 Pocket Edition (PE) 1.4.0 — 1.10.0
Dead Tube Coral Block
(minecraft: coral_ block)
8 Pocket Edition (PE) 1.11.0 — 1.13.0

See a complete list of Minecraft IDs that is interactive and searchable.

Minecraft Xbox One

In Minecraft, a dead tube coral block has the following Name, ID and DataValue:

Item Description
(Minecraft ID Name)
Minecraft
ID
Minecraft
Data
Value
Platform Version (s)
Dead Tube Coral Block
(minecraft: coral_ block)
5 Xbox One 1.6.0 — 1.10.0
Dead Tube Coral Block
(minecraft: coral_ block)
8 Xbox One 1.11.0 — 1.13.0

See a complete list of Minecraft IDs that is interactive and searchable.

Minecraft Nintendo Switch

In Minecraft, a dead tube coral block has the following Name, ID and DataValue:

Item Description
(Minecraft ID Name)
Minecraft
ID
Minecraft
Data
Value
Platform Version (s)
Dead Tube Coral Block
(minecraft: coral_ block)
5 Nintendo Switch 1.6.0 — 1.10.0
Dead Tube Coral Block
(minecraft: coral_ block)
8 Nintendo Switch 1.11.0 — 1.13.0

See a complete list of Minecraft IDs that is interactive and searchable.

Minecraft Windows 10 Edition

In Minecraft, a dead tube coral block has the following Name, ID and DataValue:

Item Description
(Minecraft ID Name)
Minecraft
ID
Minecraft
Data
Value
Platform Version (s)
Dead Tube Coral Block
(minecraft: coral_ block)
5 Windows 10 Edition 1.4.0 — 1.10.0
Dead Tube Coral Block
(minecraft: coral_ block)
8 Windows 10 Edition 1.11.0 — 1.13.0

See a complete list of Minecraft IDs that is interactive and searchable.

Minecraft Education Edition

In Minecraft, a dead tube coral block has the following Name, ID and DataValue:

Item Description
(Minecraft ID Name)
Minecraft
ID
Minecraft
Data
Value
Platform Version (s)
Dead Tube Coral Block
(minecraft: coral_ block)
5 Education Edition 1.4.0 — 1.9.0
Dead Tube Coral Block
(minecraft: coral_ block)
8 Education Edition 1.12.0

See a complete list of Minecraft IDs that is interactive and searchable.

Definitions

  • Description is what the item is called and (Minecraft ID Name) is the string value that is used in game commands.
  • Minecraft ID is the Internal number for the item.
  • Minecraft DataValue (or damage value) identifies the variation of the block if more than one type exists for the Minecraft ID.
  • Platform is the platform that applies.
  • Version(s) is the Minecraft version numbers that the Minecraft ID and Name are valid for.

Give Command for Dead Tube Coral Block

  • Java
  • PE
  • Xbox
  • Nintendo
  • Win10
  • Edu

Give Command in Minecraft Java Edition (PC/Mac)

In Minecraft Java Edition (PC/Mac) 1.13, 1.13.1, 1.13.2, 1.14 and 1.15, the /give command for Dead Tube Coral Block is:

Give Command in Minecraft Pocket Edition (PE)

In Minecraft Pocket Edition (PE) 1.11.0, 1.12.0 and 1.13.0, the /give command for Dead Tube Coral Block is:

In Minecraft Pocket Edition (PE) 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.8.0, 1.9.0 and 1.10.0, the /give command for Dead Tube Coral Block is:

Give Command in Minecraft Xbox One

In Minecraft Xbox One 1.11.0, 1.12.0 and 1.13.0, the /give command for Dead Tube Coral Block is:

In Minecraft Xbox One 1.6.0, 1.7.0, 1.8.0, 1.9.0 and 1.10.0, the /give command for Dead Tube Coral Block is:

Give Command in Minecraft Nintendo Switch

In Minecraft Nintendo Switch 1.11.0, 1.12.0 and 1.13.0, the /give command for Dead Tube Coral Block is:

In Minecraft Nintendo Switch 1.6.0, 1.7.0, 1.8.0, 1.9.0 and 1.10.0, the /give command for Dead Tube Coral Block is:

Give Command in Minecraft Windows 10 Edition

In Minecraft Windows 10 Edition 1.11.0, 1.12.0 and 1.13.0, the /give command for Dead Tube Coral Block is:

In Minecraft Windows 10 Edition 1.4.0, 1.5.0, 1.6.0, 1.7.0, 1.8.0, 1.9.0 and 1.10.0, the /give command for Dead Tube Coral Block is:

Give Command in Minecraft Education Edition

In Minecraft Education Edition 1.12.0, the /give command for Dead Tube Coral Block is:

In Minecraft Education Edition 1.4.0, 1.7.0 and 1.9.0, the /give command for Dead Tube Coral Block is:

Other Coral

There are other types of coral in Minecraft such as:

How to Lay a Concrete Block Wall

Learning to lay concrete blocks is a valuable DIY skill and one that could make many projects a breeze. Here are some tips and instructions that will help make your first concrete block project that much easier. This information will help create a neater and superior installation that produces far less waste, and it will help you know how to choose the best blocks, pour the footing, estimate the materials, prepare the area, and lay the blocks.

Step 1 — Choose Your Blocks

Various types of concrete blocks exist to meet your needs in whatever project you have in mind. These include two-core units, three-core units, steel sash units, wood sash (jamb) units, single bullnose units, capping units, header units, and return or corner angle units. If you’re unsure of which type your job calls for, any home improvement sales associate should be able to help you select the correct ones.

Eight-inch standard blocks are actually only 7 & 5/8-inches wide, which allows the mortar to expand while drying. Standard blocks are appropriate for most projects, with half-blocks with square or rounded corners usually installed at the end of a run. Single and double corner units provide a smooth surface at the corner.

When laying blocks for a doorway, make sure you use jamb joist blocks. Sash blocks are good for casing windows, and header blocks provide a space for wooden supports or other structures. Special blocks are also available for almost any building requirement.

Step 2 —

Pour the Footing

Every concrete block wall should be laid on a secure footing of poured concrete, regardless of height or length. Both block barbecue grills and outdoor fireplaces require a large concrete pad, so keep this in mind.

When you pour a footing, the base should always reach below the frost line. To be safe, you should probably dig a couple of inches below the known frost level in your area. It should also be two times the width of the wall as well, with the wall placed in the center. So, if you are using eight-inch blocks, then the footing should be and 16-inches wide in order to provide a four-inch rim on either side of the block.

Use 2×4 boards to build the frame where you will pour the footing, and hold the boards in place with wooden stakes driven into the ground every three inches. If the area has drainage problems, install a line along the outer edge of the form, providing a one-inch drop for every 20-feet of the drain line. Then, backfill the drain line with one foot of crushed stone or gravel. Be sure that your footing will not disrupt a natural runoff of water or divert the flow into a neighboring property.

Create an opening to accommodate any gas, electric and water supplies you need by nailing four 2×8 boards in the proper position before pouring the footing. Four-inch drain tile will also often suffice. Mark the depth and location of this utility opening on your foundation plan with a stake in order to easily locate it later.

Larger footings will have to be poured in pieces, rather than all at once, so before proceeding, divide the total frame into smaller sections with 2x4s. Then, to ensure your footing will be level, whether it’s big or small, place a level across the frame every eight feet and adjust the 2x4s by raising or lowering the stakes as needed. Fill the form to the top edge and level the concrete by scraping a 2×4 across the top in a sawing motion. Add more concrete to the low spots if necessary. When the footing is poured and leveled, allow it to dry for a couple of days, three if it’s carrying a heavy load.

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Step 3 —

Plan the Number of Blocks and Mortar

You can generally estimate the number of blocks and mortar you’ll need for a given project. For every 100 square feet of wall, you will need about 225 4x4x16, 6x4x16, or 8x4x16 blocks. If you’re using 4x8x16, 6x8x16, 8x8x16, or 12x8x16 blocks, you will need about 112 and one-half blocks for completion.

You can also estimate your required number of blocks by figuring you’ll use three eight-inch blocks for every four feet on each course.

For mortar, 100 square feet of the wall made with four-inch blocks will require about 13 1/2 cubic feet (or about six cubic feet per 100 blocks). A wall made with eight-inch blocks will require about 8 1/2 cubic feet of mortar per 100 square feet of wall (or 7 1/2 cubic feet per 100 blocks).

Please note that these figures are based on a 3/8-inch mortar joint.

Step 4 —

Prepare the Area

Before starting to lay blocks, build a form at each corner by driving stakes made from scrap wood. Locate the exact corner by stretching lines from one corner form to the other. The exact corner will be the point at which the two lines cross. Drop a plumb bob at the cross point and about two feet out in each direction.

Lay out a course of concrete block on the dry footing. Do not use mortar for this test run since you’re only trying to get an idea of what you need. Use corner blocks where they are needed and cut blocks as required to make it all fit. Use a piece of scrap 3/8-inch plywood to fill in the mortar joint between each block. After you’ve finished the text run, clear everything away and prepare for the real thing.

Step 5 —

Lay the Blocks

Drop plumb bobs from the corner string and at a point three feet from the corner. Mark the location of the corner block on the footing base and then spread the mortar in the marked area about one inch deep and eight inches wide. Extend this mortar by three blocks in one direction and put a furrow in the center of the mortar with a trowel. This furrow will force the mortar to the edge of the block when it is laid.

Lay the corner concrete block first and make sure you’re using the correct finished end. Thoroughly check the starting corner block and take the time to position it correctly. All other blocks will align with this starter block, so it’s very important that it is set right. Follow the same procedure for all remaining corners, laying about two or three blocks of the first course in each direction. Tie a line between two bricks and stretch it between the corner blocks on the first course.

Continue to lay the base mortar as the course continues, and apply mortar to the ends of the blocks with a trowel before placing them in the correct position also. Make sure to keep all mortar joints about 3/8 of an inch. Use a masonry chisel if you must cut a block. Mark a line on both sides where the cut is to be made and then strike the chisel with a hammer. It’s tricky, but you’ll get the hang of it.

Once several concrete blocks have been laid, use a long level to verify the alignment. Check both the tops of the blocks and the outside edge. Tap the blocks to correct the alignment while the mortar is still wet. Never attempt to move a block after the concrete begins to set.

Continue to build the corners first and keep them higher than other runs until you finish the job. Also, keep the guidelines between the corners at all times. They will help you keep the blocks level at all points in each course and keep the guidelines tight. Correct any misalignments as you go.

Use a trowel to remove surplus mortar and dispose of it onto the mortarboard. Keep turning the mortar with your trowel throughout the project so small portions will not harden. Use a 3/4-inch plyboard or the bed of a wheelbarrow as a mortarboard. Always wet the board or the wheelbarrow bed before placing the mortar while laying the concrete block.

Do not mix more mortar than you can use in 90-120 minutes, and on hot days, keep it covered with a piece of plastic to retain moisture while you’re working. Also, to keep it workable, use as much water as the mortar will absorb while retaining its elasticity.

Stagger the blocks from the corners and build the wall to the desired height. Take time to level the blocks after each course, using a level at least three feet long. The thicker end of each block should face up. Also, keep a leveling string at the top of each course on each run of the block.

Measure not only the length, but also the height every three runs, and hold your level diagonally along the block corners to check for accuracy. If the blocks are being laid right, then the corners will strike evenly along a level held in this position.

Once all the concrete blocks have been laid, while the mortar is still pliable, use a jointer to finish the joints. Keep the jointer wet at this time. Reinforcing rods may also be necessary for walls that are built high. Lay 1/4-inch reinforcing with the ends overlapped two to three inches. Mortar can be placed directly over the rods as well.

If wood framing will be attached to the top run, set an anchor bolt every three feet in the last run. If a load-bearing wall intersects with the exterior wall, use metal tie-bars to secure it to the main wall. Set the bars at least every other run. Non-load-bearing walls that are connected to main walls can be tied with a 16-inch strip of 1/2-inch mesh galvanized hardware cloth directly over the block. A strip of this cloth should be used for every other course at the tie-in point.

If the concrete blocks are being laid as a fence or barrier, the top course should be finished by filling the holes with fresh concrete. For a neater and more enduring finish, use patio blocks, as they are very attractive with the added benefit of being waterproof.

Now that your concrete block wall is finished, you can add some personality! If you would like to paint your new wall, read this article to learn how.

A metal block in a tub of frictionless ball bearings [closed]

If you place a metal block in a tub of small frictionless ball bearings of the same metal, would it stay on top or sink.

closed as off-topic by Dav >♦ Aug 27 ’15 at 7:50

This question appears to be off-topic. The users who voted to close gave this specific reason:

    «Homework-like questions should ask about a specific physics concept and show some effort to work through the problem. We want our questions to be useful to the broader community, and to future users. See our meta site for more gu >If this question can be reworded to fit the rules in the help center, please edit the question.
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