SteamyTea

Storage heaters, fan heater, panel heaters, infrared, and even oil filled electric heater are all resistance heater. 1 kWh of electricity in, 1 kWh of thermal energy out. Have you considered Air to Air Heat Pumps or maybe a normal ASHP that will also do the hot water.

You must have been naughty and had your IP blocked. Einstein's Explanation Of Photoelectric Effect The photoelectric effect is a phenomenon where electrons are emitted from the metal surface when light of sufficient frequency is incident upon it. The concept of the photoelectric effect was first documented in 1887 by Heinrich Hertz and later by Lenard in 1902. But both the observations of the photoelectric effect could not be explained by Maxwell’s electromagnetic wave theory of light. Hertz (who had proved the wave theory) himself did not pursue the matter as he felt sure that it could be explained by the wave theory. However, the concept failed in the following accounts: According to the wave theory, energy is uniformly distributed across the wavefront and is dependent only on the intensity of the beam. This implies that the kinetic energy of electrons increases with light intensity. However, the kinetic energy was independent of light intensity. Wave theory says that light of any frequency should be capable of ejecting electrons. But electron emission occurred only for frequencies larger than a threshold frequency (ν0). Since energy is dependent on intensity according to wave theory, the low-intensity light should emit electrons after some time so that the electrons can acquire sufficient energy to get emitted. However, electron emission was spontaneous no matter how small the intensity of light. Following is the table with links of other experiment related to the photoelectric effect: Hertz And Lenard’s Observations Of The Photoelectric Effect Einstein’s Explanation of Photoelectric Effect Einstein resolved this problem using Planck’s revolutionary idea that light was a particle. The energy carried by each particle of light (called quanta or photon) is dependent on the light’s frequency (ν) as shown: E = hν Where h = Planck’s constant = 6.6261 × 10-34 Js. Since light is bundled up into photons, Einstein theorized that when a photon falls on the surface of a metal, the entire photon’s energy is transferred to the electron. A part of this energy is used to remove the electron from the metal atom’s grasp and the rest is given to the ejected electron as kinetic energy. Electrons emitted from underneath the metal surface lose some kinetic energy during the collision. But the surface electrons carry all the kinetic energy imparted by the photon and have the maximum kinetic energy. We can write this mathematically as: Energy of photon = energy required to eject an electron (work function) + Maximum kinetic energy of the electron E = W + KE hv = W + KE KE = hv – w At the threshold frequency, ν0 electrons are just ejected and do not have any kinetic energy. Below this frequency, there is no electron emission. Thus, the energy of a photon with this frequency must be the work function of the metal. w = hv0 Thus, Maximum kinetic energy equation becomes: KE = 1/2mv2max=hv–hv0 1/2mv2max=h(v−v0) Vmax is the maximum kinetic energy of the electron. It is calculated experimentally using the stopping potential. Please read our article on Lenard’s observations to understand this part. Stopping potential = ev0 = 1/2mv2max Thus, Einstein explained the Photoelectric effect by using the particle nature of light. The below video is a quick revision of what is photoelectric effect:

Ask Einstein, he is to blame. https://byjus.com/physics/einsteins-explaination/

But will probably agree. Forgot to mention DIN. And WADE, which is just a pisstake name for what happens after they leave.

Why, our climate is very benign compared to Canada. Like everything, if it is done right there will not be a problem.

You can't have asked a plumber, they would have said: "15mm, 3/4", BSP, 22mm onto a 7/8", couple of 6 inch bends, apart from the 175mm one, inch flexi......"

Whenever there is a good south westerly blowing, I always think of the Holy Grail. Sleeping off a supper of 3 tins of pilchards should allow the smell to carry to Wales.

How deep into the wall? There is a big difference between 20mm and 75mm. https://www.engineeringtoolbox.com/amp/cantilever-beams-d_1848.html

Or

I got a cheap one from Lidl. I would not worry too much about precision and accuracy, you will be using it as a comparator i.e. is this bit hotter than that bit.

Reminds me of Mousetrap

There are VAT implications leaving it too late.

I am currently making some shelves, for under the stairs. They will only be 300mm deep, but part of them is going to be hinged so that I can hide stuff behind (scaffold tower and bicycle or two). Not thought too hard about the mass on them, just going to rely on a bit of overengineering.

Strange, usually we stop on a red light, but sometimes it means go, or on. Must account for the twats that cross the road when their sign is red, they are in a hurry to get down onto the dock area.

I was around in the 60s, in Holland. When the girls were not working, and my parents wanted a night out, they came around and did the child minding. Very liberal family.

I am nowhere near a hub. Just me and the Atlantic Ocean, and the smell of Newlyn, which is like a Hull brothel at closing time.

WiFi of mobile internet? You can see why they call me Slow Hand now.

Thought I would check my speed. I am out at the moment. Pretty poor. I think my life will be unaffected though.

Have you looked for a local Weather Underground station. That may help you prove it? You could of course log your own conditions, but you may have to spend 50 quid to get the kit. If you did get some decent weather data, and it was not different from mine, what would you do then?

One day I am going to be trapped in it, so far it has only been minor delays.

Sadly not, they don't fill the car up. Takes me over an hour to get to the border between Cornwall and Devon. Shows how far away I am from the rest of the country.

Shame you are not a bit closer, looks like I am in for a quiet winter. So better ask away.

We're abouts in the country are you?

Checked mine the other day worked out at 140 Lt/day. Considering there is only me, yours seems reasonable. But I do like wallowing in a bath. Well I did, cost if electricity and the cost of water (have I ever mentioned I have the most expensive in the country), I am doing short showers, in luke warm water, just waiting till I can shiver myself dry. Saves washing a towel.

https://en.wikipedia.org/wiki/French_drain Seems like a good solution.