The CMB Cold Spot or WMAP Cold Spot is a region of the sky seen in microwaves that has been found to be unusually large and cold relative to the expected properties of the cosmic microwave background radiation (CMBR).
What is cold spot?
cold spot. noun. an area where house prices are stable and properties are slow to sell.
What are cold spots in a house?
What Is a Cold Spot? Cold spots are noticeable dips in temperature within your home. You can tell you've hit a cold spot when you're walking through the hallway or into another room and you encounter an air temperature that's colder than the rest of the abode.
What does cold spot mean in geography?
cold spot. n. (Commerce) an area where house prices are stable and properties are slow to sell.
Where is the CMB cold spot?
The Cold Spot (CS) in the cosmic microwave background (CMB) map is an unusually cold and large region, located at (l, b) ∼ (208°, −57°) with the mean temperature decrement ΔT ≈ −150 μK in a 5° radius, and is among the robust large-scale CMB anomalies.
How big is the cold spot?
The "Cold Spot" is approximately 70 µK (0.00007 K) colder than the average CMB temperature (approximately 2.7 K), whereas the root mean square of typical temperature variations is only 18 µK.
What causes cold spots on walls?
This issue occurs when damp and moisture penetrates a surface and affects those surfaces behind it. In most situations this is the result of failure in the pointing between the bricks or blocks of the outside wall, spalling (cracked and crumbling brick faces) or cracking in any facing render.
How do I prevent cold spots in my house?
There are some ways that you can help eliminate hot and cold spots in your home.
- Check to Make Sure No Vents are Blocked. …
- Look for Drafts. …
- Think About Your Insulation. …
- Use Zoning, and Good Thermostats. …
- Duct Cleaning and Furnace Maintenance.
23 Oct 2017
Why does my wall have a cold spot?
Damp spots on your wall are usually also cold spots by their nature because damp walls lose heat three times faster than dry walls. Again, this attracts moisture which condenses on the damp spot to make the situation worse.