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Tuesday, January 7, 2020

Samsung Galaxy A70

Samsung Galaxy A70 is a smartphone in the Samsung Galaxy A series, and a bit of an upgrade from the Galaxy A50 smartphone as it relates to the Memory size, battery capacity and display resolution. The Galaxy A70 has battery capacity of about 4,500 mAh battery capable of up to 25W fast charging courtesy of USB-PD technology. There are a lot of exciting new feature within the Galaxy A70, but here are the most important ones

What makes the Samsung Galaxy A70 Smartphone Unique.

  • Physical: Smooth/Sleek full-frontal gorilla glass, edge-to-edge screen, plastic Front and back frame.
  • Display: Resolution 1080 x 2400 (FHD+)6.7-inch screen, sAMOLED Infinity-U display 
  • Processor CPU Speed: 2 GHz, 1.7 GHz
  • Processor CPU Type: Octa-Core
  • Camera: Triple camera, Main camera is 32.0 MP (F1.7) , Depth camera is 5.0 MP (F2.2) , Ultra wide camera is 8.0 MP, Auto-focus rear camera.
  • Memory: RAM Size: 6 GB,ROM Size: 128 GB, Usable memory; 108.2 GB, Up to 512GB MicroSD support
  • Battery Capacity; 4500 mAh, Li-Ion; 25W fast charging
  • OS; Android 9 Pie; Samsung One UI
  • Bluetooth Version: Bluetooth v5.0 (LE up to 2 Mbps)
  • Network: 2G, 3G, 4G FDD LTE, 4G TDD LTE
  • SIM: Dual sim, SIM 1 + SIM 2 + MicroSD, Nano size SIM\
  • Weight: 183g
Samsung A50
Samsung A50

Samsung has introduced the Galaxy A10, A20, A30, A40, A50, A70, and A80 smartphones under the A Series having various premium specification particularly in camera skills. In this article, we shall focus more on the features for Samsung A50 series and its exciting capabilities.

Samsung Galaxy A50

What makes the Samsung A50 Smartphone Unique.

  • Physical: Smooth/Sleek full-frontal gorilla glass, edge-to-edge screen, plastic Front and back frame.
  • Display: Resolution 2340 x 1080 (FHD+), Super AMOLED main display with size 162.1mm and colour depth 16m 
  • Processor CPU Speed: 2.3GHz, 1.7GHz
  • Processor CPU Type: Octa-Core processor (4xCortex-A73 + 4xCortex-A53)
  • Camera: Triple camera, Main camera is 25.0 MP (F2.2) , Depth camera is 5.0 MP (F1.7) , Ultra wide camera is 8.0 MP, Auto-focus rear camera.
  • Memory: RAM Size: 4 GB,ROM Size: 128 GB, Usable memory; 107 GB, Up to 512GB MicroSD support
  • Battery Capacity; 4000 mAh, Li-Ion; 15W quick charge
  • OS; Android 9.0 Pie; Samsung One UI on top
  • Bluetooth Version: Bluetooth v5.0 (LE up to 2 Mbps)
  • Network: 2G, 3G, 4G FDD LTE, 4G TDD LTE
  • SIM: Dual sim, SIM 1 + SIM 2 + MicroSD, Nano size SIM
  • Misc: Single bottom-firing speaker, Under-display fingerprint reader

Monday, January 6, 2020


Jamb Exam.

The joint Admission and matriculation board (JAMB) is an board that organizes the Unified Tertiary Matriculation Examination (UTME) which is predominantly written in a West African country 'Nigeria'. Jamb is an entrance examination board for the tertiary level/college institutions. The examination is conducted in over 650 accredited computer based test (CBT) centers distributed round the country. All candidates in this country must write the examination and meet the cut off marks set by their preferred institution choice, out of various institutions in the country.

In Nigeria, there are 36 states and has over 322 tertiary level institutions which comprises of the federal universities, private universities, state universities, public polytechnic, private polytechnics and college of education.

Number of Higher institutions. 
The approximate number of accredited tertiary level institutions in Nigeria is given below;.

Universities 170
Polytechnics 132
College of Education 152

Cut-off Marks
Average Cut-off Marks for the different schools.

Federal & State Universities 180
Private Universities 140
Polytechnics 120
Colleges of education 100

Jamb Official website.
The joint Admission and matriculation board (JAMB) has an official website were applicants can register, check results and either accept or reject admission offers into chosen tertiary-level institutions.

How to Create a Jamb profile.

1. Sign up on their official website 
2. Fill in the registration form with the right information. (An Applicant is entitled to one phone number only)
3. After a profile is created,  Send your full name (Surname, first and middle name) to "55019" as SMS.
4. A ten-digit Profile code will be sent to your phone.
5. Present your Profile code and buy the registration form at the approved(Banks, MFBs, USSD Partners, Switches) obtain your ePIN.


JAMB 2020

The Unified Tertiary Matriculation Examination (UTME) will commence between March 14 and April 14. The JAMB registrar stated that an optional mock examination for candidates would also take place on February 18, 2020. Registration for the exams will start on January 13 and end on February 17. All candidates must have their National identification number (NIN) to take part in this examination this year.

Wednesday, January 1, 2020

fundamental quantity and derived quantity

Fundamental Quantity
In Physics and general science, fundamental quantities are base/physical quantities independent of all other quantities. They are measured in base or fundamental units. Length (L), Mass (M), Temperature (K), Mole (Amount of substance) (mol), current (Ampere), Luminous intensity (Candela).

Derived Quantity
In physics and general science, derived quantities are quantities that are dependent on fundamental quantities and are measured by the simple and easy combination of fundamental quantities. Some  Examples are: Electromotive force (EMF), density, volume, momentum, Area and so on.

Watch Summary video for fundamental and derived quantity.

Monday, December 30, 2019


In the previous article on Emulsifiers, the concept of emulsion was highlighted on.

What is Emulsion?
Emulsion is definitely a common term in the chemistry world. Emulsion is the mixing or colliding of one liquid with another liquid the are normally insoluble in each other. It is a type of Colloid action. Although, the mixture of the two immiscible (insoluble) liquids will separate again after a period of time, unless an Emulsifier is added to it.

Types of Emulsion
1) Water-in-Oil Emulsion: Here, the water is suspended in an oil mix. This emulsifier suitable for stabilizing this type of emulsion is more soluble in water and less soluble in oil. An Example is Ice cream.

2) Oil-in-Water Emulsion: Here, the oil is suspended in water mix. This emulsifier suitable for stabilizing this type of emulsion is more soluble in oil and less soluble in water.An Example is Lotions.

water and gas

POP Quiz:
Task: Spot and answer the 3 test question in the Video below.
Leave the answers in the comment section.

Some food emulsifiers are egg yolk, Monoglyceride & Diglyceride, Mucilage (in mustard) and many some others.


General Concept of Emulsifiers (All you need to know)


This is a chemical/substance/compound that assists in stabilizing an Emulsion. Emulsion is the suspension or dispersion of a liquid in another liquid that are not normally soluble (Immiscible) and forms an heterogeneous mixture.

Read more:

Why doesn't Oil and water Mix?
Oil has molecules that are as Non-polar and therefore can not mix or be soluble in Water which has polar molecules.

Figure one, Oil floating on water as a result of difference in a variable density.

Oil/Water don't mix
Oil/Water don't mix

Only Polar molecules can dissolve and attract other polar molecules. This is as a result of the said molecules having charges on both ends. That is, one end of the each molecule has a positive charge and the other end has a Negative charge.

Oil molecules are non polar molecules and therefore can not mix with polar molecules. This is because Non-polar attracts non polar.

Hydrophilic and lipophilic
For Figure two below,  Working principle of Emulsifier.

Hydrophilic and lipophilic
Hydrophilic and lipophilic

The Emulsifier generally composes of a Water loving Hydrophilic head region and the Oil-Loving Lipophilic tail. Emulsifiers has several uses, functions and application with its distinct feature in helping to stabilize texture and increase shelf life of Food and Cosmetics.

Tuesday, December 10, 2019

In the current day's world, the benefit of social advertising is such that until and unless of course we click and upload our ventures, those moments are believed to be worthless. And, with increased and more guys succumb to adrenaline rushing actions, the need of the hour is actions webcam that may capture many of these moments whenever and any state and replay these people in high top quality.

school territory

With that currently being said, required that comes into the head is the kind of actions cam that you should search for. The market today is filled with sports stanza da letto that cater to unique objectives. In buy to lower your sense of overwhelming, we certainly have listed certain requirements that need to be fulfilled before you purchase-

Size & Built

The entire purpose of a great action model of camera is that it can hold up against natural elements and reach remote four corners easily and that is why they have to have a resilient designed and be tiny in size.

Conditions proof each land proof undoubtedly are a need to for any sports activities camera to come to be successful. There are a few camcorders that are produced out of water protected material during your stay on island are other folks that really must be placed in a waterproof cover.


One of the most essential qualities of virtually any camera is the quality and MEGAPIXEL it could possibly record photos. Today any camera well worth its sodium provides 4k image resolution video lessons with luxurious Mp images. Nevertheless, with that explained,, depending upon the screen device and the aim of the action camshaft, you can decide whenever a 4k action camera system is for you or perhaps certainly not.


The goal of activities camera is always to take different facets and that's where the accessories play a vital role. With unique gadgets, you can easily capture many things of view in addition to diverse natural conditions. So, before choosing any kind of sports camera make certain to do a good proper report on the accessories obtainable.

Power Life

What is normally the of virtually any video camera if their battery pack dies upon you in the vital point and even more consequently if it is usually a sports camshaft which is meant for capturing fast activities or adrenaline dash inducing occasions. Consequently, it is important to get a person who has a long power supply life and comes with they are simply power.


Ram takes on a long way more important purpose than recording the content. An easy undertaking memory cards assures that there is definitely no break in the footage and this data transfers in a faster amount. Looking at this, a class 20 ram card is definitely the ideal fit for many on the users.